Caladenia – Spider orchids, dragon orchids, zebra orchids, candy orchids, fan orchids and fairy orchids.

A list of the orchids from the Caladenia Genus that I have been lucky enough to find.

Caladenia filamentosa complex (Wispy spider orchids) 

Flowering – Late June to early December

There are 43 Western Australian species

  • A single, usually narrow, hairy leaf with in-curved margins.
  • Up to 3 flowers.
  • Most species have long wispy petals and lateral sepals.
  • Labellum with short, serrate or dentate fringe segments  and two rows of calli.

Caladenia chapmanii (Chapman’s spider orchid) 02/09/2017

Caladenia dimidia (Chameleon spider orchid) 11/08/2017

Caladenia filifera (Blood spider orchid) 02/09/2017

Caladenia footeana (Crimson spider orchid) 02/09/2017

Caladenia microchila (Western wispy spider orchid) 16/07/2017

Caladenia pendens (Pendant spider orchid) 01/09/2017

Caladenia vulgata (Common spider orchid) 16/07/2017

Caladenia xantha (Primrose spider orchid) 28/07/2015


Caladenia longicauda complex (White spider orchids)

Flowering – Late June to early December

There are 14 Western Australian species

  • Long hairy leaf with flattened or in-curved margins.
  • Up to 4  (rarely 5) predominately white flowers.
  • Long wispy, spreading to pendulous petals and lateral sepals.
  • Labellum with long fringe segments and four or more rows of calli.

Caladenia longicauda subsp. crassa (Esperance white spider orchid) 27/08/2017

Caladenia longicauda subsp. rigidula (rigid white spider orchid) 26/09/2015

Caladenia longicauda subsp. australora (Southern white spider orchid) 27/08/2017


Caladenia huegelii complex (King spider orchid)

Flowering – August to December

There are 22 Western Australian species

  • Long, hairy leaf with flattened or in-curved margins.
  • 1 to 4 flowers with clubbed sepals.
  • Most have shorter petals than lateral sepals.
  • Labellum with short to long, often thickened fringe segments and four or more rows of calli.

Caladenia decora (Esperance king spider orchid) 30/07/2017

Caladenia heberleana (Heberle’s spider orchid)


Caladenia longiclavata complex (Clubbed spider orchids)

Flowering – August to November

There are 6 Western Australian species

  • Long, hairy leaf with flattened or in-curved margins.
  • 1 to 3 flowers with clubbed sepals.
  • Most also have clubbed petals.
  • Labellum with narrow fringe segments with pointed ends and four or more rows of calli.

Caladenia arrecta (Reaching spider orchid) 31/07/2015


Caladenia falcata complex (Green spider orchids)

Flowering – August to early December

There are 9 Western Australian species

  • Long, hairy leaf with flattened or slightly in-curved margins.
  • Up to 3, rarely 4 flowers with clubbed sepals.
  • Some have up-swept lateral sepals.
  • Four or more rows of labellum lamina calli.
  • Most have long labellum fringe segments with pointed tips

Caladenia attigens (Small mantis orchid) 13/09/2014

Caladenia falcata (Fringed mantis orchid) 02/09/2017

Caladenia exstans (Pointing spider orchid)


Caladenia hoffmanii complex (Hoffman’s spider orchids)

Flowering – August to early February

There are 4 Western Australian species

  • Long, hairy leaf which is flattened or has in-curved margins.
  • Up to 2 flowers.
  • Shortened petals and sepals.
  • Long, fine labellum fringe segments and four or more rows of calli.

Caladenia graminifolia (Grass-leafed spider orchid) 27/08/2017


Caladenia roei complex (Small spider orchids)

Flowering – August to early October

There are 7 Western Australian species

  • Hairy leaf that may be flattened or have in-curved margins.
  • Up to 2, rarely 3 flowers.
  • Shortened petals and sepals.
  • Large, rounded labellum with smooth margins and a dense central band of calli.

Caladenia brevisura (Short-sepaled spider orchid)

Caladenia roei (Clown orchid, ant orchid, man orchid, jack-in-the-box) 02/09/2017


Caladenai cairnsiana complex (Zebra orchids)

Flowering – July to early November

There are 2 Western Australian species

  • Long, hairy leaf with slightly in-curved margins.
  • Petals and lateral sepals of similar length and both hang downwards.
  • Distinctly up-swept labellum with smooth margins, and glandular tip.
  • Dense central band of labellum lamina calli.

Caladenia cairnsiana (Zebra orchid) 27/08/2017

Caladenia pachychila (Dwarf zebra orchid) 27/08/2017


Caladenia barbarossa complex (Dragon orchids)

Flowering – August to mid November

There are 4 Western Australian species

  • Relatively short, broad, green leaf. Often lies flat on the ground.
  • 1, rarely 2 flowers
  • Shortened petals and lateral sepals, down-swept to hanging.
  • Dorsal sepal often bend backwards.
  • Densely hairy labellum with a large gland at it’s highest point.

Caladenia barbarossa (Common dragon orchid)


Caladenia hirta complex (Candy orchids)

Flowering – Late June to early November

There is 1 Western Australian species, comprising 2 sub-species

  • Broad, flattened hairy leaf.
  • 1 to 3 (rarely to 6) white or pink flowers.
  • Short, spreading petals and sepals.
  • Narrow, upright labellum with short fringe segments and four or more rows of calli.

Caladenia hirta subsp. rosea (Pink candy orchid) 01/09/2017


Caladenia nana complex (Pink fans)

Flowering – Late September to November

There is 1 Western Australian species, comprising 2 sub-species.

  • Broad, hairy leaf.
  • Up to 3 (rarely to 5) usually pink flowers.
  • Petals and sepals form a fan-like arrangement.
  • Lateral sepals are united near the base.
  • Labellum with short fringe segments and calli confined near the base.


Caladenia latifolia complex (Fairy orchids, cowslip orchids)

Flowering – July to December

There are 4 Western Australian species

  • Colony forming habit.
  • Relatively, broad hairy leaf.
  • 1 to 4 (rarely to 6) pink, yellow or white flowers.
  • Short, stiffly spreading petals and sepals, lacking clubs.
  • Tri-lobed labellum with a raised plate near the base.
  • Calli extend from either  side of the plate.

Caladenia flava subsp. flava (Cowslip orchid) 13/08/2017

Caladenia flava subsp. maculata (Kalbarri cowslip orchid)

Caladenia latifolia (Pink fairies) 26/08/2017

Caladenia marginata (White fairy orchid)

Caladenia reptans subsp. reptans (Little pink fairy, dwarf pink fairy) 13/08/2017

Caladenia reptans subsp. impensa (Pale pink fairy)


Caladenia – mixed

Caladenia creba (Arrowsmith spider orchid)

Caladenia discoidea (Dancing spider orchid) 30/07/2017

Caladenia multiclavia (Lazy spider orchid)

Caladenia radialis (Drooping spider orchid)

Caladenia wanosa (Kalbarri spider orchid)


Caladenia Hybrids

Caladenia x spectabilis (Spectacular spider orchid) 02/09/2017

Caladenia flava x C. reptans


 

Sunday search of Helms Arboretum

27/08/2017

Sunday morning fishing planned, however after a sleep-in we decide to head out to Helm’s Arboretum to check on the orchids instead. Our Southern Curly Locks is still yet to bloom so we resign ourselves to the fact we will miss it this season as we head out on our 3 week road trip in 3 days.

Next we check out the location we find our Western tiny blue orchids (Cyanicula aperta) and we were rewarded with both regular blue and some rarer white flowers.

In the adjoining plot I came across a first for me. A Grass-leafed spider orchid (Caladenia graminifolia) which flowers August to September and ranges from Mt Manypeaks to Israelite Bay. I thought is was a Green spider orchid however on checking my Orchid books it proved to be a Hoffman spider orchid due to the prominently clubbed sepals and petals plus the long thin fringe segments on the labellum.

Also in the same plot we located some Snail orchids and King spider orchids. I will go out on a limb and name the snail orchid as Ravensthorpe snail orchid (Pterostylis sp. ‘Ravensthorpe’) as they are found between Stirling Ranges and Esperance and flower August to September. The spider orchid is our local Esperance king spider orchid (Caladenia decora).

Moving along to another plot we locate some White spider orchids. I believe there are two subspecies of the Caladenia longicauda species found. First being the Esperance white spider orchid (Caladenia longicauda subsp. crassa) which has short spreading petals and lateral sepals, flowers August to early September and ranges from Jerramungup to Cape Arid National Park. Second being the Southern white spider orchid (Caladenia longicauda subsp. australora) which has long pendulous petals and lateral sepals, flowers September to October and is found Millar’s Point to Fitzgerald River National Park. Slightly east of recorded location however it is the only White spider orchid that comes close to Esperance with long pendulous petals and sepals. The “Florabase” record 15359 includes the Esperance Local Government boundary and Esperance Plains region in it’s lists of locations, so I am confident with my classification.

 

We move onto another known location to find our little Zebra orchid (Caladenia cairnsiana) and we were not disappointed. These little fellows are found between Esperance and Lancelin and flower August to early November.

Close by the Zebra orchids were Dwarf zebra orchids (Caladenia pachychila) which are distinguished from their big brother by their petals and sepals not clasping the ovary. They still hang but do not clasp the stem.

Another find nearby was a very white White spider orchid. Unable to ID this one but it was big and beautiful.

Next we move to the snail hood plot to see what is still flowering. Our first find were some more Western tiny blue orchids and then we find the snail hood. Snail orchids of unknown identity due to wrinkled leaves.

Our last stop of the day was near the entrance to the reserve and we find the good old faithful Cowslip orchid (Caladenia flava subsp. flava). As usual Helm’s Arboretum didn’t let us down.

Cowslip orchids
Close neighbours