Discovering Orchids: A Southeast WA Pub Crawl Adventure

List of Orchids Found, Numerous days, Pallarup NR, Road Trip, Western Australian Orchids

07/09/2024

Today is the day that our Pub Crawl around the Southeast of WA commences.
We head off in the Triton around 8.45 am and venture over to Nulsen to pick up our travelling companions for the adventure, Bob and Jan.
First stop is at the Munglinup¹ Roadhouse, where I take the time to have a very quick check for orchids.

8 species are found, which is quite unbelievable.
First up, the reliable Cowslip orchid (Caladenia flava subsp. flava) is found.
Next is a large white spider orchid, which, given its location, I will name the Esperance white spider orchid (Caladenia longicauda subsp. crassa).
Thirdly is one of the smaller spider orchids from the Filamentosa complex. It is most likely the Common spider orchid (Caladenia varians).
Next is the small Zebra orchid (Caladenia cairnsiana).
The 5th orchid found is the Lemon-scented sun orchid (Thelymitra antennifera).
A not fully opened Purple enamel orchid (Elythranthera brunonis) is found next.
The 7th orchid for the day is the Dancing spider orchid (Caladenia discoidea).
Final and 8th orchid for this location is the Small mantis orchid (Caladenia attingens subsp. gracillima).

We now move on to the lookout on Ethel Daw Drive in the Ravensthorpe shire. Only 2 species were found along the roadside.
First up is the Western tiny blue orchid (Cyanicula aperta), followed by the Sugar orchid (Ericksonella saccharata).

Moving back to Elverdton Road, we head west and pull into a new location I will name Ravensthorpe¹.
Walking along this dirt track, we locate 4 species, 1 new for the day.
Found again were the Small mantis orchid, Sugar orchid and Western tiny blue orchid.
The new species for the day is the Common dragon orchid (Caladenia barbarossa).
Terrible pictures were taken, so I will include only 2.

***Caladenia attingens subsp. gracillima***

Passing through Ravensthorpe, will pull into Kukernup Memorial to have lunch.
After having a bite to eat, we all venture out to explore the walk trail.
It was a great spot, as we found 9 orchid species in flower.
First up is the Jug orchid (Pterostylis recurva),
Next, more Dancing spider orchids and Common dragon orchids are found.
Also found again were more Small mantis orchids, Lemon-scented sun orchids, Cowslip orchids and Purple enamel orchids.
Other new species found for the day are the Redbeak (Pyrorchis nigricans) and the Frog greenhood (Pterostylis sargentii).

We now backtrack to the road leading to Lake King and head north. Next stop is one of our all-time favourite places.
Pallarup Rocks picnic area provides loads of places to explore for orchids.
We are not disappointed with the species located.
First up are the Sugar orchid, Cowslip orchid, Jug orchid, Purple enamel orchid, and Lemon-scented sun orchid, which were all found earlier today at prior locations.

New species found start with the Ant orchid (Caladenia roei), quickly followed by the closely related Short-sepaled spider orchid (Caladenia brevisura) and Purple-veined spider orchid (Caladenia doutchiae).

The next new species found for the day was the Pink candy orchid(Caladenia hirta subsp. rosea) together with its hybrid – Tinged spider orchid(Caladenia x suffusa).
So, now to find the other possible parent of the hybrid. Due to the location, I believe the other parent to be the Pallarup white spider orchid (Caladenia longicauda subsp. ‘Pallarup’). Luckily specimens are found.

Once up on the granite rock we come across some donkey orchids. I believe them to be the Yellow granite donkey orchid (Diuris hazeliae). I have posted images of 3 orchids as they may represent another species.

A smaller whiteish spider orchid is found in various shades, however I feel they are all the Chameleon spider orchid (Caladenia dimidia).

Do you agree they are all one species?

Also found a nice bunch of what appears to be another orchid species, possibly the Central wheatbelt spider orchid (Caladenia sp. ‘central wheatbelt’) however is outside of the recorded location.

Thoughts?

Another frog greenhood is found however on closer inspection; it is actually a Little frog greenhood (Pterostylis occulta) due to the hairy narrow horn-like labellum structures.
2 pics posted to show this aspect as clearly as possible

Another new orchid for the day is the Little laughing leek orchid (Prasophyllum gracile) which is found growing in shallow soil on the granite.

Other random hybrids are found during the search, and I will post them below for record keeping. Assigning parents is always difficult for hybrids especially between the Roei and Filamentosa complexes.

Well that is our final orchid stop for the day, so it is off to our first hotel stay. Night 1 is spent at the Newdegate Hotel.
Checked out the Silo Art before settling in for the night.

23 species found with a possible 4 hybrids, plus a possible new species but outside its usual range.

Amazing first day !!!!

Late Start to Orchid Hunting: What We Found

Day Trip, Nature Reserves, Speddingup East NR, Western Australian Orchids

29/05/2025

Well, we are a bit late in our first orchid exploration this year, as it has been a hectic couple of months. Usually, we head out in late March or early April.
As our usual suspects are found north of Esperance, we head out on Dempster Road for a look.
We will mix it up, though, by visiting new locations, so our Scaddan ¹ location is our first stop.

As with most early-season searches, the results are pretty average.
The first orchids found were specimens of the Banded greenhood (Pterostylis vittata), which is found growing between Perth and Israelite Bay from late-April to early September.

The only other orchid found here was the Pygmy orchid (Corunastylis fuscoviridis), which is found between Corrigin and Eucla in WA, as well as in South Australia and Victoria.
It is one of the first orchids of the season in WA, as it flowers from March through to May.

Moved onto another nearby location, Scaddan ²; however, this proved even less successful.
The sole find here was the Hare orchid (Leporella fimbriata), which is found between Shark and Israelite Bays from March to June.

We leave Dempster Road and head west along Scaddan Road, where we make another impromptu stop. Scaddan ³.
A rather overgrown sand track that required me to remove fallen branches or hold back overhanging shrubs to try our best not to scratch up the Mighty Triton too much.
OMG, this was nearly a waste of time. Only found another Banded greenhood and a very spent Pygmy orchid.
Pics for recording purposes.

Moving on to our last location of the day, which is located in the Speddingup East Nature Reserve.
Here we spend around 1 hour looking around with not much luck.
This time, only further Banded greenhoods and Hare orchids were found.
Again, pics taken for recording purposes.

Driving back along the Coolgardie-Esperance Hwy, we make a quick check of our Gibson ¹⁵ location.
Here we find our Robust snail orchids, but they are only starting to sprout, so we will need to revisit if we are to catch them flowering.
Oh well, it was not such a great day out, but we did get to enjoy the fresh air and clocked up some steps, which is always good for us.
Until next time!!

Top Orchids Found West of Esperance: A Field Report; Part IV

Day Trip, Western Australian Orchids

04/09/2024

Well, this has proven to be a full-on day trip looking for orchids. The last stop for the day is an East Munglinup location, though this time it’s on Jonegatup Road.

The first orchid found is the Small mantis orchid (Caladenia attingens subsp. gracillima), which has been a common orchid at various locations today.
Flowering occurs from August to October in woodlands and shrublands between Jerramungup and Israelite Bay.

Whilst capturing a photo of the Small mantis orchid, another smaller orchid is spied. Another better example is found soon after.
The Little frog greenhood (Pterostylis occulta) is found between Northampton and Ravensthorpe from late-August to October.
Our location is some 80kms to the east of Ravensthorpe, so a slight extension to its range.

Further along, a couple of specimens of the Zebra orchid (Caladenia cairnsiana) are found.
These small orchids occur between Lancelin and Esperance from August to early-November.

It was amazing to catch 2 species of orchids growing together. The Small mantis orchid was found under the watchful eye of the Common dragon orchid (Caladenia barbarossa).
The dragon orchid is found growing between Bindoon and Esperance from September to mid-November.

Appears to be the location for Caladenia species. Next up, we find the Short-sepaled spider orchid (Caladenia brevisura).
These orchids are found between Jerramungup and Israelite Bay during August and September.

5 other species were also spotted at this location.
4 were solo specimens:
Little laughing leek orchid (Prasophyllum gracile)
Sugar orchid (Ericksonella saccharata)
Western tiny blue orchid (Cyanicula aperta)
Common spider orchid (Caladenia varians)

Lastly was the Lemon-scented sun orchid (Thelymitra antennifera), which was found in a group, though not yet fully open.

So, our day trip finally comes to an end. We now need to drive the 112 kms home, but we do so with a sense of achievement.
This final location turned up 10 different orchid species, whilst over the whole day, we discovered at least 27 orchid species and at least 1 hybrid.
What a Day !!!!!

Orchids Found on the Brookton Highway Adventure

Brookton Highway NR, Lake Hurlstone NR, Nature Reserves, Road Trip, State Forest, Western Australian Orchids

31/08/2024

Time to head back to Esperance. I decide to take the Brookton Hwy direction and make my first stop along the highway in the State Forest in the Flint locale.
At this random stop I was extremely lucky to stumble across the Bird orchid (Pterostylis barbata).
This sole specimen though had not yet fully flowered, so its labellum was not visible. Also, the brown markings around where the labellum appears between the body forming petals was not yet evident. However, I am still confident in my identification.

Moving along the highway to the next Flint location¹ in the hope that more species will be found. Parking up off the road I had a quick look around but was driven back to the car by a rain shower.
I did find a nice donkey orchid specimen, however now the difficult task of identifying it. I am leaning toward the Common donkey orchid (Diuris corymbosa) which flowers from August to October.
They are listed as growing between Mogumber and Tenterden in sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands. (Colours differ due to mobile / camera pics)

Another orchid found in this quick search was a Silky blue orchid (Cyanicula sericea) which is distributed between Jurien Bay and Esperance. They occur from August to early-October and is found growing in sandy, sandy-clay and lateritic soils in forests and woodlands. They occur in greater numbers in the season following a summer bushfire.

The rain stopped for a bit so had another quick look and came across a wonderful Jug orchid (Pterostylis recurva).
These orchids are distributed between Geraldton and Israelite Bay growing in sandy-clay and clay soils in woodlands and shrublands.

Final orchid found at this location was the small Little Pink Fairy orchid (Caladenia reptans subsp. reptans) which is distributed between Northampton and Esperance.
They are recorded as growing in a wide variety if habitats; from coastal heath to dry inland woodland in sandy to clay loam to gravelly soils.

Well, I didn’t get far along the highway before I made another stop, this time in Westdale¹. Pulling off the road I make a beeline for the bush I hope to find the Blood spider orchid, as I have found it at this location on a previous visit.
First up though I find some more donkey orchids flowering. Unsure of the ID as they may just be more Common donkey orchids D. corymbosa or may be another species.
I will post to iNaturalist but they are rarely identified on that site either.

Then I stumble across a Green spider orchid (Caladenia falcata) which can also be referred to as the Fringed mantis orchid.
These orchids are distributed between Wongan Hills and Jerramungup growing in a variety of woodland and shrubland habitats, on sandy to clay loam soils.

Then the targeted orchid is found, however in much lower numbers than before. As time is precious, I quickly take some pics of a couple, without exploring further.
The Blood spider orchid (Caladenia filifera) is distributed between Wongan Hills and Tenterden growing in heathy to shrubby woodland and open forest, on clay loam, sometimes gravelly soils.

After successfully finding the Blood spider orchid it was time to move on.
Further along the highway I pull into Jelcobine location⁹, in the Brookton Highway Nature Reserve.
As per today’s previous locations the first orchid found was another donkey orchid. ID is proving difficult as 3 species are recorded in the Atlas of Living Australia for the surrounding area and the dorsal sepal is both erect and recurved in the flowers found.
The options are Diuris brachyscapa, D. porrifolia and D. corymbosa. Any help with identification would be appreciated.

Another yellow-coloured orchid is also found scattered over the location searched. The widespread and common Cowslip orchid (Caladenia flava subsp. flava) is distributed between Northampton and Israelite Bay.
This orchid grows in a wide variety of habitats from wet forest and coastal heath to dry inland woodland, on deep sands to heavy clay loam soils.

Final orchid found at this spot was a solitary Sugar orchid (Ericksonella saccharata) which occurs between Paynes Find and Israelite Bay growing in a variety of habitats including heaths, woodlands, mallee scrubs and granite outcrops, on sandy to clay to gravelly loan soils.

Now as I am writing this blog some 7 mths after the actual date I have forgotten where my final search was completed as it was nearly 3pm, so more than 3 hrs since the previous stop. I did however stop for lunch in Corrigin so feel it was near Hyden. Upon researching Google Maps I have deduced it was at the Lake Hurlstone Nature Reserve stop.

2 species located here were previously found today so I will only post pictures of these. They were the Sugar orchid and Jug orchid.

Donkey orchids were also found and as usual the ID is difficult however based on the location and number of flowers it appears to be the Western wheatbelt donkey orchid (Diuris brachyscapa).
These orchids are found growing between York, Tenterden and Ravensthorpe in woodlands and on and around the margins of granite outcrops.

Next, I stumble across a couple of small spider orchids. They appear to be the Chameleon spider orchid (Caladenia dimidia) which is found between Paynes Find and Norseman growing in seasonally moist areas on granite outcrops, mallee woodlands and slopes to seasonal creeks.

Underneath some bushes I spied some Hairy-stemmed snail orchids (Pterostylis setulosa) still in flower.
These little guys are found between Kalbarri and Balladonia in WA as well as in NSW and SA. They grow in shrublands, woodlands and shallow soil pockets on granite outcrops.

The next stop was another 1hr later so from using maps again I believe I may have pulled into Pallarup Nature Reserve; however, this place is usually full of orchids so not really sure. However, pics were taken so will post them here.
The Midget greenhood (Pterostylis mutica) is found growing in WA between Wongan Hills and the SA border. Also found in QLD, Vic, NSW, Tas and SA.
Grows in shrublands, woodlands and shallow soil pockets in granite outcrops, as it appears many of our orchid do.

Another long drive back to Esperance, though this one was broken up with some fruitful orchid explorations. More than 12 species found, especially given the Donkey orchids found may be a few different species given the distance covered.
This is the last day of Winter down here in Australia, so tomorrow will be Spring and the so-called peak flowering time for WA orchids.

Orchid Adventures on the Road to Perth

Pallarup NR, Road Trip, Western Australian Orchids

28/08/2024

Heading up to Perth for a few days so made sure to stop along the way to look for some orchids in flower.
First stop after 2 or so hours of driving is at the rock in Pallarup Nature Reserve.
Only had a quick 15 min walk around and found 3 species.

Pink Candy orchid
(Caladenia hirta subsp. rosea)

Sugar orchid
(Ericksonella saccharata)

Frog greenhood
(Pterostylis sargentii)

There are 2 species of Frog greenhoods, but I did not obtain a closeup pic of the labellum, which is a distinguishing feature, so have listed the original name for now.

Next stop was at the Lake Grace Lookout for a lunch break and of course an orchid hunt.

Jug orchid / recurved shell orchid / Antelope orchid / Bull orchid
(Pterostylis recurva)

This orchid has many Common Names

Sugar orchid
(Ericksonella saccharata)

Western wheatbelt donkey orchid
(Diuris brachyscapa)

Chameleon spider orchid
(Caladenia dimidia)

I have posted 4 pics as I wanted to show the varied colours of this orchid.

Well, no more stops as it is an 8hr or so drive to Perth and I wish to arrive before the kangaroos come out at dusk.

Orchid Hunting Adventure East of Esperance: 28 Unique Species

Mount Burdett NR, Mount Ridley NR, Western Australian Orchids

26/08/2024

So today I am heading out orchid hunting with another orchid enthusiast. We connected via the South East WA Orchid Group on Facebook.
Luc has kindly offered to use his vehicle for the adventure.
We have decided to head out east of Esperance and will be sharing our locations and techniques for finding orchids.

Our first location is Mount Ridley.
He we pull up on the track, near a low granite outcrop, on the drive in from Dempster Road.
This proves a fruitful location as we find multiple species within say 50sqm.

First picture taken is of the Cream spider orchid (Caladenia horistes).
They are endemic to WA and are distributed between Southern Cross, Fitzgerald River N.P. and Balladonia.
Grow in woodland and mallee scrubs, in damp locations on or around granite outcrops and along seasonal drainage lines.

A nice triple headed donkey orchid is then captured in pixels.
The Yellow granite donkey orchid (Diuris hazeliae) as the names suggests, grows in shallow soil pockets on granite. Also occurs in deeper sandy-clay soil along drainage lines.
Distributed between Paynes Find and Balladonia.

Next up the Sugar orchid (Ericksonella saccharata) is found scattered across the site.
These endemic white orchids are distributed between Paynes Find and Israelite Bay although absent on the West Coast and in the far South West.
They grow in a variety of habitats including heaths, woodlands, mallee scrubs and granite outcrops, on sandy to clay to gravelly loam soils.

Time for a blue orchid to be recorded.
The Blue beard (Pheladenia deformis) is also known as the Blue fairy orchid.
In WA they are found growing from Murchison River to Israelite Bay. They also occur in SA, Vic, Tas, and NSW.
Varied habitats from the coast to inland plains and foothills.

And the last orchid found at this location is the Small mantis orchid (Caladenia attingens subsp. gracillima).
Found between Jerramungup and Israelite Bay growing in sandy and sandy-clay soils in woodlands and shrublands.

We move onto the main parking area and head into the bush adjacent to the granite outcrop.
After quite some time of not finding anything in flower I stumble across a patch of small orchids.
Very excited as I have only found these particular orchids once before. Back in 2018 at Wattle Rocks along the Holland Track.

The Dwarf zebra orchid (Caladenia pachychila) is found growing between Nerren Nerren Station and Mt Ragged.
Typically, an inland species growing in mallee heaths and scrubs, on sandy to clay loam soils, also in shallow soils on granite outcrops, usually sheltered under shrubs

Intermixed with the dwarf zebra orchids were some small spider orchids.
They appear to be more Cream spider orchids.

Moving a little further west along the rock edge, still in the bush, I come across a larger spider orchid.
I believe this to be the Rigid white spider orchid (Caladenia longicauda subsp. rigidulus).
They are located between Ravensthorpe and Israelite Bay and inland to Balladonia growing in woodland and mallee scrubs, usually on or around granite outcrops. Also occurs on winter-wet flats and along watercourses.

Where the track hits the granite in an isolated patch of vegetation I find another Yellow granite donkey orchid.
Before we drive on, I quickly check out the Resurrection bush growing on the flat granite for any orchids.
Here I found some more Cream spider orchids.

(Diuris hazeliae)
(Caladenia horistes)

Ok so now we jump back into the 4WD and take the track along the edge of the granite that leads up to the Aboriginal Rock Art.

Under the surrounding scrub a single Western tiny blue orchid (Cyanicula aperta) is found.
Located between Dumbleyung and Mt Ragged growing in mallee scrubs and woodland, on sandy to clay loam soils, also on and around granite outcrops in shallow gravelly soils.

Another solitary orchid found was the Jug orchid (Pterostylis recurva).
These occur between Geraldton and Israelite Bay growing in sandy, sandy-clay and lateritic soils in forests, woodlands and shrublands. In inland areas it is also known to occur on granite outcrops in shallow soil pockets.

The Little laughing leek orchid (Prasophyllum gracile) was found growing in the moss on a shallow soil pocket in the granite rock.
These orchids occur between Shark Bay and Eyre also growing in sandy, sandy-clay and granitic soils in woodlands and shrublands. Near the coast they also occur in seasonally wet flats.

In the scrub above the rock art Luc stumbles across a great bunch of Rigid white spider orchids, so I just have to share a pic of these.

Also found nearby was a single Hairy-stemmed snail orchid (Pterostylis setulosa) still in flower.
In WA these occur between Nerren Nerren Station and Balladonia. They also are found in SA and western NSW.
They are a common orchid growing in shallow soil pockets on inland granite outcrops as well as sandy, sandy-clay and granitic soils in woodlands and shrublands.

Also found was a Sugar orchid, more Cream spider orchids and Yellow granite donkey orchids.

Another first found for the day was a Lemon scented sun orchid (Thelymitra antennifera) growing in the middle of a resurrection plant.
These are found between Shark and Israelite Bays, growing on creek margins, seasonally moist flats and granite outcrops.

Time to move on so Luc takes us to a spot where he has found many Blue beards. It is along the track to the secondary parking area.
There we found many Blue beards but many had finished the season already. We did have a quick look around for anything else. Alas nothing else found.

Blue Beards are found in various shades of blue/mauve and can even be found in white.

Moving south down Dempster Road to one of my spots (Wittenoom hills³⁾ in the Mt Ridley Nature Reserve which is a location new to Luc. It was here I found shell and greenhood orchids on a previous visit.
It will be interesting to see what is found this time.

First up Luc finds the Midget greenhood (Pterostylis mutica).
In WA these orchids are found between Wongan Hills and the SA border, whilst also being found in SA, Vic, NSW, Tas and southern QLD.
They grow in sandy, sandy-clay and loamy soils in woodlands and scrublands.

Then a small spider is seen hiding in the dry gum leaves and sticks. I had not found this species at this location before, so that was exciting.

The Sigmoid spider orchid (Caladenia sigmoidea) is found between Mts Jackson and Ragged growing in mallee woodland on or around rocky outcrops, on heavy clay to lighter sandy loam and sometimes gravelly soils.

Found the shell orchid again but not in the numbers previously found.

The Dwarf shell orchid (Pterostylis brevichila) is found between Hyden and Mt Ragged growing in sandy-clay and clay soils in woodlands and shrublands.

Close to the shell orchid more Sigmoid spider orchids were found.
A very special one was discovered. It appears to be a hypochromic/lutea version.
These lack certain colour pigments and usually appear yellowish white in colour.

Moving east along Norwood Road we pull into Mt Burdett which unlike Mt Ridley is found within the boundaries of the Nature Reserve bearing its name. We make our way around the base of the rock first, before climbing up to the Telstra tower.
Orchids are found sparsely scattered around.

I will list those found at this location that had been found elsewhere today.

Jug Orchid
Cream Spider Orchid
Yellow Granite Donkey Orchid
Western Tiny Blue Orchid

I have also included a video of the Cream spider orchids blowing in the wind, to provide you some idea of how hard it can be to get a good photo !!

Cream spider orchids blowing in the wind

Now for the more exciting finds here at Mt Burdett.

Firstly, comes the colourful Beautiful donkey orchid (Diuris pulchella) which occurs between Salmon Gums and Israelite Bay growing in shallow soil pockets on granite outcrops and deeper soils in surrounding shrublands.

Next, we find the Pink bunny orchid (Eriochilus scaber subsp. scaber) still in flower.
These small orchids are found between Jurien Bay and Cape Arid National Park usually after a previous summer bushfire. They prefer moist habitats, and our little patch is found growing in the moss on the granite rock.

A single flowering Brittle snail orchid (Pterostylis timothyi) is the final orchid found at this location.
They occur between Mt Lindesay and Mt Ragged and inland to Merredin, growing in sandy, sandy-clay, and clay soils in woodlands and shrublands

Next stop is one of Lucs locations where he has found Curly locks before. This location is in Neridup² along Coolinup Road.

Luc found the Southern Curly-locks (Thelymitra uliginosa) in flower which confirmed this was the correct spot.
They are found between Busselton and Esperance (This location is over 50kms northeast of Esperance) growing in seasonally damp areas surrounding peaty swamps and granite outcrops.

Pics of orchids found here as before in previous locations:
Jug Orchid
Western Tiny Blue Orchid
Cream Spider Orchid

I have also included a pic of the typical habitat we find the Southern curly-locks growing in.

Another snail orchid is found, however due to its stature and bloated appearance I believe it to be another new species for the day: The Fawn snail orchid (Pterostylis parva).
Found between Albany and Eyre and inland to near Lake King, growing in sandy, sandy-clay and clay soils in woodlands, shrublands and soil pockets on granite outcrops.

Further afield I stumble across the Esperance white spider orchid (Caladenia longicauda subsp. crassa) growing within the scrub.

As the name suggests they are located between Bremer and Israelite Bays growing in clay and sandy-clay soils in seasonally moist woodlands and shrublands.

A bright yellow orchid comes into view.
The Common bee orchid (Diuris decrementum) is found between Wongan Hills and Israelite Bay growing in sandy-clay soils in open woodland and shrublands.

Another donkey orchid found, however a different species thus time.

The South coast donkey orchid (Diuris brockmanii) is found between Ongerup and Esperance growing in sandy, sandy-clay and lateritic soils in mallee woodlands and shrublands.

Another smaller spider orchid is found, which is also whitish in colour.

This one appears to be the Common spider orchid (Caladenia varians) which is found between Kalbarri and Esperance growing in coastal heaths, woodlands, mallee scrubs, on granite outcrops and around salt lake margins, usually on well-drained sandy loam soils.

Final orchid for this location is the Dancing spider orchid (Caladenia discoidea).

This orchid is found between Kalbarri and Israelite Bay growing in a variety of woodland and heath habitats, usually on sandy soils.

We move onto what will be our last location of the day. This is another new location for me and is further up Coolinup Road so is now a Mt Ney¹ location.

First up we are astounded as to the numbers of spider orchids found in a small open area under the trees.

The Cream spider orchid is found singularly and in clumps all over whilst the Rigid white spider orchid appears as isolated individuals.

Next up is an exciting find. A Blue china orchid is found with another one turning up within 30mins of searching.
Not 100% sure of the ID so posted then separately on iNaturalist.
Appears they may be 2 different species.
First one is confirmed as the Boyatup china orchid (Cyanicula sp. “Boyatup”) which has yet to be formally named.
As the name suggests they have a restricted range east of Esperance.

And the 2nd orchid is confirmed as being the Granite china orchid (Cyanicula nikulinskyae) which is found between Fitzgerald River and Cape Arid National Parks.
As the name suggests they can be found growing in shallow soil pockets on granite outcrops, however, are also found growing amongst low shrubs or in open herbfields, on well drained gravelly loam soils.

Another orchid found in quite good numbers was the Short-sepaled spider orchid (Caladenia brevisura).

These occur between Jerramungup and Israelite Bay growing in woodland, mallee scrubs and on granite outcrops, in sandy to gravelly and clay loam soils.

Stumbled across an orchid that commences its season in August, so it is not fully open, however pic taken for recording purposes.

The Purple enamel orchid (Elythranthera brunonis) is found between Kalbarri and Israelite Bay, growing in heaths, woodland, open forest and malee scrubs in sandy, sandy-clay and lateritic soils.

Orchids found previously today were also found at this location. Pics taken for recording purposes.

Common bee orchid
South-coast donkey orchid
Small mantis orchid
Blue beard

Well what a day it has been.
I took my first pic at 9.47am and my final pic at 4.07pm.
Time to head back to Esperance
28 species recorded with a Lutea thrown in
Plus 2 species of China orchids in 1 location
An amazing day
Thanks for the company, Luc

Exploring Orchid Diversity north of Esperance

Helms Arboretum, Nature Reserves, Swan Lagoon NR, Western Australian Orchids

17/08/2024

So today we decide to head north of Esperance to see what the season has produced. We don’t get far before we pull into our first stop of the day.
Helms Arboretum is always a favourite stop.

Starting off small the first orchid found was the Zebra orchid (Caladenia cairnsiana).

These orchids are found growing between Lancelin and Esperance. They have only recently started flowering as their season commences in August and extends to early-November.

They are recorded as growing to heights of 400mm which would be amazing to find. Our specimens are more around the 200mm range.

Next our targeted orchid the Grass-leafed spider orchid (Caladenia graminifolia) was found.

These orchids also commence their flowering in August, then until September only.

They range from Mt Manypeaks to Israelite Bay so appears restricted to the south coast.

The Esperance king spider orchid (Caladenia decora) was represented by a single specimen found nearby the aforementioned orchids.

This king spider orchid is located from Bremer Bay to Cape Arid. Its season is mid-August to October.

We don’t stay longer at Helms as we only popped in here to find a flowering Grass-leafed spider orchid.

Our next stop is near Gibson¹⁴. We walk along the tracks and every so often we venture into the surrounding scrub.

A solitary Blue beard (Pheladenia deformis) is found first.

These orchids flower from late-May to October.

In WA they occur between Murchison River to Israelite Bay.

As this area has been burnt in the last few years, we were still able to find some Redbeaks (Pyrorchis nigricans) in flower.

Redbeaks flower from August to October.

They are found from Shark Bay to Israelite Bay, which is one of the largest ranges for an orchid in WA.

Throughout the area checked we came across a few patches of the Cowslip orchid (Caladenia flava subsp. flava).

This subspecies is the most widespread and ranges between Northampton and Israelite Bay.
It also has the longest flowering season; July to early-December.

There are 4 subspecies of the Cowslip orchid. The other 3 are restricted to much smaller ranges that all overlap the range of the subspecies found around Esperance.

We did make an exciting find of a hammer orchid leaf in bud.
From the leaf I believe it will be the King-In-His-Carriage orchid (Drakaea glyptodon).

These orchids flower August to October over a range between Eneabba and Esperance.

However, the most prolific orchid found at this location was the Esperance king spider orchid.

It was found either as a lonely specimen or in good size groups.

If any of the flowers pictured are the similar C. heberleana, please comment on this post.

We move further north up the highway to another location in the Gibson area ¹⁵.
A gate had been installed which precluded us for heading down the track. We instead checked out the verge and walked a bit into the scrub.

Hiding under the verge scrub we find the Jug orchid (Pterostylis recurva).

This unusual but common orchid is found between Geraldton and Israelite Bay.

Flowering season is only from August to October

Deb has her eye in for spying orchids as she stumbles across an exciting find for this location.

The first orchid found is so small. Refer pic with the tip of my index finger for size comparison.

The Reaching spider orchid (Caladenia arrecta) is so named due to its erect petals.

Found between Bindoon and Israelite Bay.

Flowering season from late-July to mid-October.

We now move onto a new location, further north. We turn left at Hawkey Road them immediately right into Swan Lagoon Road. Our first stop ¹⁶ along this road is down a track in some bushland.
We take this slowly and regularly get out to walk along and into the surrounding scrub. It is along this track that we pull over and have lunch from the back of the Triton.

The orchid that stands out for this location is the Western Tiny Blue orchid (Cyanicula aperta). It was found in huge numbers.

They are found flowering from August to early-October between Dumbleyung and Mt Ragged.

They have horizontally held petals and lateral sepals and can grow up to 150mm in height.

Another very similar orchid is also found, however not is such great numbers.

The Sugar orchid (Ericksonella saccharata) flowers in August and September between Paynes Find and Israelite Bay.

A small number of Midget greenhoods (Pterostylis mutica) were found along the way.

These orchids flower from July to October between Wongan Hills and the SA border.

They can grow to 200mm in height and can have up to 15 small green flowers.

A further Pterostylis orchid is found in small numbers.

The Brittle snail orchid (Pterostylis timothyi) flowers July to September between Lake Cronin and Esperance.

Some distinctive features are having a small rosette of pointed prominently veined leaves and only one or two stem leaves.

The we find one of the newest named Greenhoods. The Mallee banded greenhood (Pterostylis arbuscula) was formally named in 2018.

The flower between Dalwallinu and Eyre bird observatory during the months June and July.

As we are now in August this could explain why we only found two still in flower.

Amazingly we find a Grass-leafed spider orchid in this new location. So that makes a third spot we have found this orchid. Helms and Stokes NP are the other locations.

Another orchid of the Pterostylis genus is found. Only one specimen found, so was very lucky to have spotted it.

This time it is the Dwarf shell orchid (Pterostylis brevichila) which flowers from July to September.

It has an inland southeastern range, occurring from Hyden to Mt Ragged.

The Jug orchid is found at numerous spots in this location.

Pictures taken for registration purposes.

Just before we decide to have a break for lunch, we finally find a donkey orchid.

There are 2 possible ID’s for these orchids. They could be the South Coast donkey orchid (Diuris brockmanii) or the Yellow granite donkey orchid (Diuris hazeliae).

Flowering is June to early August and Aug to September respectively.
So, the ones that already have finished flowers could very well be the former.

As both are recorded for the Grass Patch area any assistance in positive ID would be appreciated.

Note the brightness of the yellow is greatest with the mobile phone pics.

Whilst eating lunch we still explore nearby.
It is here we find some different orchids than found previously today.

Due to the location, they must be the Small mantis orchid (Caladenia attingens subsp. gracillima).

These orchids flower from August to early-October between Jerramungup and Israelite Bay.

The flowers are green, yellow and red in colour and can grow up to 350mm in height.

The prominently upcurved lateral sepals are distinctive to most mantis orchids.

Back on Swan Lagoon Road we travel further north and pull into another track which is much shorter, so we walk it. ¹⁷

Blown away by the numbers of Western tiny blue orchids found.

I have posted a video below to show how many occur in say 1 square metre.

So many Western tiny blue orchids

Another previously found orchid is also found in greater numbers.

The Midget greenhood rears it lime green coloured head again.

Also found was another Mallee banded greenhood.

Moving further north again we make a final stop in the Swan Lagoon Nature Reserve.
Initially we turn up nothing in the lagoon area however further afield our luck changes.

Seems a regular occurrence today. Blue beards are also found in greater numbers than earlier today.

Well, we finally start finding the small spider orchids in flower. Actually, we find loads of them, and they may possibly be 2 species.

One is definitely the Western wispy spider orchid (Caladenia microchila).

This orchid is a common southeastern inland species. It is found between Kondinin and Madura.

Flowers occur July through to early-October.

If another species is apparent from the pictures supplied, can you please enlighten me. I am swaying to C. dimidia or C. horistes

Intermixed with the wispy style spider orchids we also find the Short sepaled spider orchid (Caladenia brevisura) standing proud.

These orchids flower between Jerramungup and Israelite Bay during August and September.

The common name refers to the shortened sepal tips, when compared to the similar C. doutchiae.

Larger spider orchids appear as we progress with our exploration of this Nature Reserve.

Due to the shorter length of the petals and sepals, plus the dull white colouring I believe they are the Reclining spider orchid (Caladenia cruscula).

These orchids are found between Salmon Gums and Mt Ragged / Israelite Bay.

Flowering during August and September.

More donkey orchids are found near the large spider orchids.

Positive ID again not attempted. Could be D. hazeliae or D. brockmanii. Thoughts??

Midget and Mallee greenhood orchids were also found at this location. Pics for recording purposes.

Our final orchid of the day was the small Sigmoid spider orchid (Caladenia sigmoidea) which was very exciting.

The name “Sigmoid” refers to the ‘S’ shaped labellum tip.

These orchids grow between Mt Jackson and Mt Ragged.

Flowering during the months of July, August and September.

They are very small, ranging from 50 to 150mm in height. Their colouring blends into their surroundings. This makes finding them difficult.

We were blown away by the numbers found. Previously, we have only found them solo or as spread-out isolated specimens.

Well, this hunt was a great success. So many orchids found, with some in huge numbers.
The highlights were the patches of Western tiny blue orchids and the large number of Sigmoid spider orchids found.

At least 20 species found!!

Discovering Unique Orchids on Esperance’s Coast

Esperance, Pink Lake, Western Australian Orchids, Wind Farm

11/08/2024

A beautiful Sunday afternoon in Esperance so what better way to spend it than looking for orchids.
Where to go today though?
Let’s hit some coastal and near coastal locations to see what we find.

First stop is a coastal Esperance location¹⁰

Walking around the marked trail from the car park Deb spies some Snail orchids growing in the scrub. These small orchids appear to be the Southern thick-sepaled snail orchid (Pterostylis meridionalis). They are found in coastal locations between Stokes Inlet and Cape Arid. Flowering from July to September in coastal woodlands and shrublands. If my ID is correct this is only the 2nd time, we have found these, which is exciting.

We now head down the dirt track to toward the granite headland. In the scrubby raised edges to the path, we are pleased to find some helmet orchids. These ones appear to be the Sand hill helmet orchid (Corysanthes despectans) which is found between Bunbury and Israelite Bay. They flower from July to early-September and grow in sandy soils in coastal woodlands and shrublands. They also occur in SA, Vic and Tas.

Now this is a newly discovered species for us so really excited.

Dorsal sepal does not form a hood over labellum

Further down the track we come across more rounded leaves. These leaves, however, end up belonging to the Mosquito orchid (Cyrtostylis robusta). This is a widespread orchid which occurs between Perth and Israelite Bay. These flower earlier so are nearing the end of their season, being June to August.

At the end of the track/s before reaching the granite another species of snail orchid is found. This one is likely to be the Eastern granite snail orchid (Pterostylis voigtii) which flowers from July to September. It occurs between Stokes Inlet and Cape Arid, growing in shallow soil pockets over granite.

Moving onto another coastal location ¹¹ . Here we first find some more snail orchids. Some had the slight clubbing to the lateral sepals whilst others did not. I believe the former are Southern thick-sepaled snail orchids whilst the later are Eastern granite snail orchids. Pics of both recorded.

Deb is excited to find a shell orchid. From the location of the orchid, I believe it to be the Curled-tongue shell orchid (Pterostylis rogersii). These orchids flower from June to August between Binningup and Esperance in coastal woodlands and shrublands. Another one is found nearby which is greener in colour but appears to be the same species.

An orchid found in various shades was the Pink fairies (Caladenia latifolia). A common orchid found between Kalbarri and Israelite Bay, flowering during the months August to December.

Another 3 species of orchid are also found. 1 of which have been found previously today: The Mosquito orchid. Newly found are the rosette of a Bird orchid and the Banded greenhood (Pterostylis vittata). Pictures taken for future reference.

Moving onto our third location for the day.¹² Here a quick inspection turns up some more Curled-tongue shell orchids.

Labellum protrudes giving the common name

Last location of the day provides wonderful views over Pink Lake. ¹³ Here we are amazed to find the Beautiful donkey orchid (Diuris pulchella) growing so close to the coast. I believed it was an inland orchid as it’s range is listed as being between Salmon Gums and Israelite Bay. These stunning orchids flower from July to September.

Another less colourful donkey orchid is also found. Due to our location, I believe this to be the Green Range donkey orchid (Diuris littoralis). Florabase’s map indicates they can occur in coastal locations. Also, their range is listed in my orchid books as being between Denmark and Esperance. The flowering season is July to early-September so it all fits.

Narrow, often crossed lateral sepals. though not is this case.

Further along the track we come across some more Pink fairies. These ones seem to be pink and white striped which is interesting. Also found a lone Snail orchid, ID unknown. Pics take for recording purposes.

Bloated appearance, thin lateral sepals and 2 cauline leaves

The final orchids found for the day were the large white spider orchids. I now need to decide if they are all the Esperance white spider orchid (Caladenia longicauda subsp. crassa) or maybe different species. What are your thoughts?

We spend several hours exploring our coastal and near coastal locations. Then, we return home happy as we have located so many different types of orchids.

The Sand hill helmet orchid being the find of the day.

I’ll finish this post with one of the beautiful scenes we enjoyed today…

Exploring Orchids in Esperance: A Solo Adventure

Esperance, Helms Arboretum, List of Orchids Found, Myrup

09/08/2024

Debbie is working this afternoon. I am now retired, so I decided to explore two locations close to Esperance solo.
Helms Arboretum and Myrup.⁹
Not much to report so I will just list the orchids found.

?? Snail orchid
(Pterostylis sp.)

Found at Helms and is un-named. Have posted numerous pics of orchid flower, full plant and the rosettes to assist identification.

Esperance king spider orchid
(Caladenia decora)

Distribution: Bremer Bay to Cape Arid

Flower: mid-August to October

These orchids vary in their appearance. This can make positive ID difficult as the co-occurring (C. heberleana), also flowers during September and October.
They also hybridise with (C. longicauda subsp. crassa) producing various coloured flowers. This also confuses identification

Banded greenhood
(Pterostylis vittata)

Dark banded greenhood
(Pterostylis sanguinea)

Both flower into September. They both have ranges that extend east to Esperance.

Grass-leafed spider orchid
(Caladenia graminifolia)

Distribution: Mt Manypeaks to Israelite Bay

Flowering: August and September

Specimen found had been nibbled and was hanging upside down. This proved interesting to photograph as it was blowing in the gusty wind.

Cowslip orchid
(Caladenia flava subsp. flava)

Distribution: Northampton to Israelite Bay

Flowering: July to early December

Common helmet orchid
(Corysanthes recurva)

Distribution: Mandurah to Albany, with numerous disjunct populations. Not recorded in Esperance though.

Flowering: June to early-September