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…

Slim Pickings on a Sunny Day: Orchid Hunting Adventures

Mount Burdett NR, Nature Reserves, Sunday Drive, Western Australian Orchids

19/05/2024

It’s past midway of May so we anticipate some other orchids are starting to show themselves. So, northeast of Esperance we head with our first stop being one of our usual haunts in Neridup¹.

The only orchid found during a quick sweep of the location was the Hare orchid (Leporella fimbriata).

They are a very distinctive orchid with thin upright petals that appear to be ears and a prominently fringed labellum.

Flowering: March – June
Distribution: Shark Bay to Israelite Bay

Moving on towards our planned destination we pull into a track on a whim and have a quick look around.² Not much found here either.

First up we find the Pygmy orchid (Corunastylis fuscoviridis), however they are finished for the season. Pics taken for recording purposes only.

Flowering: March – May
Distribution: Corrigin to Eucla

Then we come across the Banded greenhood (Pterostylis vittata) which is the most common of the greenhood orchids.

Flowering: April – September
Distribution: Perth to Israelite Bay

Then a small greenhood orchid is found that is just sprouting its first flower. From the colouring and size, I believe it will be the Mallee banded greenhood (Pterostylis arbuscula).

Flowering: June – July
Distribution: Dalwallinu to Eyre Bird Observatory

Next, we move onto our planned destination, Mount Burdett, which is also located in the Mt Burdett Nature Reserve. We enjoy a late bite to eat for lunch before starting our search.

On the granite rock we locate some bunny orchids growing. By referring to the latest book by Andrew Brown I ID them as the Eastern granite bunny orchid (Eriochilus dilatatus subsp. “eastern granites”).

Flowering: April and May
Distribution: Esperance to Balladonia

Then around the back of the rock I discover the sole Hare orchid growing. Last year there were more but not today 🙁

Well not such a productive day, however it is always wonderful to get out on a beautiful sunny winters day.

06/08/2023 ….. Discovering a Diverse Array of Orchids in East Esperance: A Photographic Journey

Condingup Water Reserve, Other Reserves, Sunday Drive, Western Australian Orchids

After one week back at work we need to get out exploring, so as it’s Sunday we head East to Condingup to see if our Curly locks are flowering. At our townsite location we head to the location I had recorded in my Australian Geology Travel Maps app and we locate one in flower.
The Southern curly-locks (Thelymitra uliginosa) is known to occur from Busselton to Esperance, flowering during August and September. It is distinguished by its spiral leaf and the more purple-coloured flowers, rather than the pinkish colour of the other curly locks species.

Further afield we stumble across the Dancing spider orchid (Caladenia discoidea) which is a distinctive spider orchid having forward projecting lateral sepals and a very broad labellum with long fringe segments. They flower between Israelite Bay and Kalbarri during late Autumn to mid Spring.

Another spider orchid found in greater numbers was the Common spider orchid (Caladenia varians) which as the name suggests has a large range from Kalbarri to East of Esperance, similar the C. discoidea mentioned previously. It flowers over a slightly longer season, July to mid-October and as its Latin name suggests is variable in appearance over its extended range.

There was a single spider orchid that has had the tips nibbled off its sepals and petals, so I initially was leaving it out of this post, however after posting it on iNaturalist it appears it is the Cream spider orchid (Caladenia horistes) which occurs between the Fitzgerald River N.P and Balladonia, flowering from August to early-October.

Other orchids found were either at the end of their season or just starting. Those ending were the Hare orchid (Leporella fimbriata) and the Scented autumn leek orchid (Prasophyllum sp. ‘early’) and the Jug orchid (Pterostylis recurva) was just starting. Flowering seasons are March to June, April to June and August to October respectively.

We now move onto our next location, Condingup Peak (Mud Map SE39) which is located in the Condingup Water Reserve. Here we find the small Fawn snail orchid (Pterostylis parva) growing in the moss on or near the granite rocks. These little orchids are found between Albany and Eyre from June to early August and are distinguished by their tiny rosette of stalked leaves, diminutive size and they become reddish with age.

The only other orchid flowering up on the peak was the Banded greenhood (Pterostylis vittata) which is found between Perth and Israelite Bay over a longer season that most other orchids, being late April through to early September.

From here we head out to our Parmango Road locations. First up we are knocked over by the number of curly locks found in flower at a patch we had not found them before. Last year we found spiral leaves so were hopeful of finding one in flower, but we found multiple. These ones included one that was pinkish in colour though it still had the usual stripes to the petals and sepals. It is possibly the Curly-locks (Thelymitra spiralis) which is also found east of Esperance during the months of August and September. The species is recorded as having pale pink petals and sepals which are unblotched.

Two others were found with blotches to the markings which may distinguish them to be the related Eastern curly-locks (Thelymitra maculata) which is also known as the Spotted curly-locks, which fits the look. They flower slightly earlier than the Southern species, however, are recorded only as far east as Ongerup, some 375km to the west of our location. Posted on iNaturalist and in the Western Australian Native Orchids FB group for assistance in identification. The responses were mixed so I will leave the ID as tentative.

Walking back to the Triton we stumble across a better Jug orchid specimen and a couple of Curly-lock pairs which may or may not be different species, due to different colouring. But the surprise find here was a good number of more Common spider orchids in flower.

Back in the Triton we move onto another location along Parmango Road where we spy more orchids. We find many orchids on the longish walk so I will group them together in species rather than chronologically. Firstly, more Southern curly-locks are found, with some showing the different shadings to the alternate petal/sepal/labellum.

Next are spider orchids from the Caladenia filamentosa complex. Telling the correct species from one another is difficult within this complex. The Common spider orchid (Caladenia varians) is the most likely to be found however the Cream spider orchid (Caladenia horistes) is another possibility as is the Western wispy spider orchid (Caladenia microchila) with all being recorded as being found this far east. You be the judge.

A change in colour is a welcome surprise. The bright yellow Common bee orchid (Diuris decrementum) is found between Wongan Hills and Israelite Bay from Aug through to October. The early flowering period is the easiest way to distinguish it from the Bee orchid (D. laxiflora) which also occurs in the same locale but does not flower until September.

A solitary Esperance white spider orchid (Caladenia longicauda subsp. crassa) is found along the track. These large orchids are found between Bremer Bay and Israelite Bay from August to October.

Another solitary orchid found appears to be a Green Range donkey orchid (Diuris littoralis) which flowers between Denmark and Esperance during July to early September. The only other possibility is the South coast donkey orchid (Diuris brockmanii) which occurs over a similar range but flowers earlier, June to early August. I will leave the positive ID to those more qualified than I.

Unsure why we are finding solo specimens, but the Bluebeard (Pheladenia deformis) is also found all by itself. This is a tiny specimen but is a nice discovery, nonetheless. This is a widespread species, ranging from Murchison River to Israelite Bay in WA, as well as being found in other states.

Leaving Parmango Road we head southwest to a granite outcrop at the Cape le Grand National Park turnoff on Merivale Road. Here we find lots of Bluebeard orchids which is nice, however it was exciting to find a new species for the day. The small Mosquito orchid (Cyrtostylis robusta) is found by searching under bushes for the distinctive round ground hugging leaf. Once you find the leaves you then take a closer look and luckily for us today, we find some in flower. These orchids flower between Perth and Israelite Bay from June to August.

Final orchid of the day is a small snail orchid. Bases on location, size and colouring I will be naming this species as the Fawn snail orchid which was found earlier today at Condingup Peak.

The east of Esperance rarely disappoints and today was no exception. At least 14 species found.

21/07/2023 ….. A week spent wandering – Part 1

Dragon Rocks NR, Numerous days, Road Trip, Western Australian Orchids

Our one week’s holiday is upon us, and we had planned a trip to Albany, however plans do change and so we are actually heading up to Perth first, to see the Lightscape Show in Kings Park.

Today we make our way to Pingelly, where we have booked a room in the newly re-opened Exchange Tavern. We will of course make a few stops to check for orchids. the first stop being in the Dragon Rocks Nature Reserve. Our plan here was to check some previously found orchids to see if we have timed their flowering. Unfortunately, we were a tad early, plus it was a very overcast day, so no sunshine to encourage the orchids to open. From the leaf structure and the spotted markings to the buds we believe them to be the Eastern Queen of Sheba (Thelymitra speciosa) which flowers from late June to September, over a range from the Stirling Range to Condingup.

We also found some Hare orchids (Leporella fimbriata) still flowering and a few past their prime greenhoods. They are most likely some Mallee banded greenhoods (Pterostylis arbuscula) due to their small stature.

**Short statured Mallee banded greenhood**

Time is getting away, so we move onward. We head west and make our next stop near the Pingaring Nature Reserve. We make our way up the track to the granite rock which is another one which is used as a water catchment. It was a nice walk however the only orchids found were some Hairy-stemmed snail orchids (Pterostylis setulosa) which is a common inland species. Still a new species for the day so not disappointed. This may prove a great location for later in the season.

**Petals and dorsal sepal fused to form hood over column.**

Nearly 2pm so again we move on. Still heading west, we decide to check out Jilakin Rock, which we have planned to do many times before but have never had the time. We pull into the bay on the roadside and as usual it looks pretty rundown and weedy, which has put us off before. This time though using Google Maps we note a track that heads around the rock nearer the lake. Here we come across an abandoned gravel/sand pit area, so we pull up and go exploring. First orchid found is another Hairy-stemmed snail orchid, with more of them found further afield as well.

This location though turns up more than just snail orchids. We find many Blue beard (Pheladenia deformis) flowering all over the location. These bright orchids are always a pleasure to find, as they always provide the chance of finding a white variety. No such luck this time though. Their season is from late May to October, and they range from the Murchison to Israelite Bay. They are also referred to as the Blue fairy orchid by some references.

Now for the hard part. Trying to identify the many wispy type of spider orchids found. Using the ‘Explore Your Area” function of Atlas of Living Australia website there are a few possibilities which does help to narrow it down. First up is the Chameleon orchid (Caladenia dimidia) which is a variably coloured orchid found flowering from July to early October, between Paynes Find and Scaddan.

Just thought I would post a video to show how the wind makes getting great photos of these small spider orchid very difficult.

Hold still please!!!!!!!!!!!!!!!!!!!

Other orchids do not seem to fit the descriptions in my references so I will post some pics of them and please let me know your thoughts on the identification.

Just after 3pm so we move on as we need to get to Pingelly for our planned overnight stop at the Exchange Tavern. We enjoy a wonderful pub meal, play video games on a sit-down console in the TV room and settle in for a comfortable night’s sleep. A great finish to our first day.

04/09/2022 ….. Father’s Day Findings Pt. I

Dempster Head, Esperance, Western Australian Orchids

Father’s Day breakfast enjoyed at my son’s home with his little family. After stuffing ourselves, we all venture up to Dempster Head to walk off the excess joules. 🙂 It is during our walk that we encounter the following orchids.

Spectacled donkey orchid (Diuris conspicillata)

Distribution & Habitat: Restricted to the Esperance area, growing in shallow soil pockets on coastal granite outcrops.

Eastern granite snail orchid (Pterostylis voightii)

Distribution & Habitat: Found between Albany & Israelite Bay, growing in shallow soil pockets on granite outcrops.

White spider orchid ?? (Caladenia sp.)

Unknown species of spider orchid.

Esperance white spider orchid (Caladenia crassa)

Distribution & Habitat: Found between Bremer Bay and Israelite Bay, growing in clay and sandy-clay soils in seasonally moist woodlands and shrublands. Flowers best in the season following summer fire.

Western tiny blue orchid (Cyanicula aperta)

Distribution & Habitat: Found between Dumbleyung and Mt Ragged, growing in sandy, sandy-clay and lateritic soils in woodlands and scrublands.

Pink fairies (Caladenia latifolia)

Distribution & Habitat: Found between Kalbarri and Israelite Bay, growing in sandy and sandy-clay soils in forests, woodlands and shrublands. In inland areas the species grows on low rises beside salt lakes and occasionally on granite outcrops. Also found in SA, VIC and TAS.

Crystal helmet orchid (Corybas limpidus) (Corysanthes limpidus)

Distribution & Habitat: Found between Walpole and Israelite Bay, growing in sandy soils in coastal woodlands and shrublands.

Mosquito orchid (Cyrtostylis robusta)

Distribution & Habitat: Found between Perth and Israelite Bay, growing in sandy, sandy-clay and granitic soils in forests, woodlands and shrublands. Northeast of Esperance the species occupies shallow soil pockets on granite outcrops.

Esperance king spider orchid (Caladenia decora)

Distribution & Habitat: Found between Bremer Bay and Cape Arid, growing in sandy-clay and clay soils in woodlands and shrublands.

Saying goodbye to the kids, grandkids and Deb C, we head north for our next location. Here we check out the burnt patch north of Gibson.

27/08/2022 ….. Out East – Part 1 – Parmango Road

Day Trip, Western Australian Orchids

One week back at work after our 2022 road trip to Mt Augustus, we need to check out our local orchid haunts. So where to? Let us travel east of Esperance and see what is still flowering in late August.

First up we drive as far east as we will go today and call into our favourite spot along Parmango Road. After parking up, we waste no time as orchids are already spotted.

Common bee orchid (Diuris decrementa)

Distribution: Wongan Hills to Israelite Bay

Plant Height: 80-300mm

Common spider orchid (Caladenia varians)

Distribution: Kalbarri to Esperance

Plant Height: 150-300mm

Dancing spider orchid (Caladenia discoidea)

Distribution: Kalbarri to Israelite Bay

Plant Height: 100-400mm

Green range donkey orchid (Diuris littoralis)

Distribution: Denmark to Esperance

Plant Height: 180-300mm

Zebra orchid (Caladenia cairnsiana)

Distribution: Lancelin to Esperance

Plant Height: 150-400mm

Jug orchid (Pterostylis recurva)

Distribution: Geraldton to Israelite Bay

Plant Height: 300-900mm

Common spider orchid (Caladenia varians)

Edit: Posting on iNaturalist changed my ID thoughts.

~~Western wispy spider orchid (Caladenia microchila)~~

~~Distribution: Kondinin to Madura~~

~~Plant Height 150-300mm~~

Eastern curly-locks, Spotted curly-locks (Theymitra maculata)

Distribution: Watheroo to Ongerup (Our location is outside this range)

Plant Height: 100-200mm

Western tiny blue orchid (Cyanicula aperta)

Distribution: Dumbleyung to Mt Ragged

Plant Height: 50-150mm

Little laughing leek orchid (Prasophyllum gracile)

Distribution: Shark Bay to Eyre

Plant Height: 60-250mm

Lemon-scented sun orchid (Thelymitra antennifera)

Distribution: Shark Bay to Israelite Bay

Plant Height: 100-250mm

It is now past 11am, so we move on to our next location, Beaumont Nature Reserve.

We make our way back to the Triton and have ourselves some lunch. It was whilst eating lunch we spied the nice Jug orchids flowering, which was great as prior to this we had only found a Jug orchid that was someone else’s lunch 🙂

From here we head back to Fisheries Road and check out a spot I had checked earlier in the year. Not much found but you never know until you check.

WA Orchid Adventures

Come with me on my Orchid Adventures in Southern Western Austalia

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