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Stark white spider orchid

Caladenia longicauda subsp. eminens

Stark white spider orchid
Photo: Geoff Derrin, CC BY-SA 4.0

A terrestrial orchid from south-west Western Australia with a single hairy leaf and up to three large white flowers in spring. It is a deciduous ground orchid that grows from an underground tuber and is found in woodland, so it is grown mainly by specialist native plant enthusiasts.

Family
Orchidaceae (Orchid family)
Grows as
Orchid
Light
Part shade
Water
Water sparingly while in leaf in winter and spring, then keep dry during summer dormancy.
Soil
Free-draining sandy or loamy soil with good organic content.
Temperature
Cool to mild temperatures suited to a Mediterranean climate; avoid prolonged frost.
How easy
Hard

About

Caladenia longicauda subsp. eminens, commonly known as the stark white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three large, bright white flowers with long, broad, spreading lateral sepals and petals, a relatively broad labellum with short, narrow teeth. It is a relatively common orchid found in a broad band, mainly between Tenterden and Jerramungup.

Where it grows

The stark white spider orchid mainly occurs between Tenterden and Jerramungup but is also found as far east as Esperance and as far north as Moora, in the Avon Wheatbelt, Coolgardie, Esperance Plains, Jarrah Forest, Mallee and Swan Coastal Plain biogeographic regions where it grows in wandoo (Eucalyptus wandoo) and yate (Eucalyptus cornuta) woodland.

Other Caladenia plants

Coastal spider orchid · Canberra spider orchid · Caladenia ×aestantha · Summer spider orchid · Fairy orchid · Stegostyla Alpina · Boranup spider orchid · Bundarra spider orchid · Charming spider orchid · Dainty spider orchid · Dainty blue china orchid · Genoa spider orchid

Text excerpted from the Wikipedia article Caladenia longicauda subsp. eminens by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

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