CALADENIA FILAMENTOSA COMPLEX
While Caladenia filamentosa is an eastern Australian species many closely allied forms which exist in Western Australia are placed within that complex. Some species such as C. chapmanii, C. footeana and C bicalliata are easy to identify however others are so closely related that their classification is very difficult to determine. Many “different” populations of unnamed forms occur throughout the whole South-West and attempts have been made to name some of these.
For example, C dundasiae was separated from C filifera because of its more stiffly held segments, and the fact that the calli extend further down the labellum. These features are however quite variable and so both orchids should be placed under C filifera which was the first named.
A good deal of confusion exists.
Caladenia bicalliata – Limestone Spider Orchid
Caladenia bicalliata ssp. cleistogama – Sandhill Spider Orchid
Caladenia caesarea ssp. maritima – Cape Mustard Orchid
Caladenia caesarea ssp. transiens – Dwarf Mustard Orchid
Caladenia chapmanii – Chapman’s Spider Orchid
Caladenia dimidia – Chameleon Orchid
Caladenia dundasiae – Patricia’s Spider Orchid
This orchid was photographed at the type location for this species hence the identification but closer examination reveals that it is C filifera.
Caladenia erythronema – Nyabing Spider Orchid
Caladenia denticulata – Yellow Spider Orchid
Caladenia exilis – Salt Lake Spider Orchid
Caladenia exilis ssp. vanleeuwenii – Moora Spider Orchid
Caladenia filifera – Blood Spider Orchid
Caladenia footeana – Crimson Spider Orchid
Caladenia fuscolutescens – Ochre Spider Orchid
Caladenia hiemalis – Dwarf Common Spider Orchid
Caladenia horistes – Cream Spider Orchid
Caladenia luteola – Lemon Spider Orchid
Caladenia melanema – Ballerina Orchid
Caladenia microchila – Western Wispy Spider Orchid
Caladenia nobilis – Noble Spider Orchid
Caladenia occidentalis – Ruby Spider Orchid
Caladenia pendens – Pendant Spider Orchid
Caladenia pendens ssp. talbotii – Talbot’s Spider Orchid
Caladenia petrensis – Rock Spider Orchid
Caladenia postea – Dark-tipped Spider Orchid
Caladenia pulchra – Slender Spider Orchid
Caladenia radialis – Drooping Spider Orchid
Caladenia remota – Outback Spider Orchid
Caladenia ultima – Late Spider Orchid
Caladenia xantha – Primrose Spider Orchid
Go to the Unnamed Wispy Spider Orchids page.
This is so helpful I can see the difference in the orchids here.