WANOSCG Orchid Fact Sheet

Caladenia speciosa

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Name and Authority

Caladenia speciosa Hopper & A.P.Br.

Synonyms (previous names)

Arachnorchis speciosa; Calonemorchis speciosa

Common Name

Sandplain White Spider Orchid

Complex Name

Caladenia longicauda (White Spider Orchids)

Originally Described by

Stephen Hopper & Andrew Brown in Nuytsia 14:145-148, Figs. 28G-L (2001)

Distribution and Habitat

Gingin to Lake Muir, growing in sandy soils in forests and woodlands.

Flowering Months

· · · · · · · · Sep Oct · ·

Description

An attractive species 350–600 mm high with a hairy leaf 150–250 mm long by 5–12 mm wide and up to three creamy-white, pink-tinged flowers 100–150 mm across.

Distinguishing Features

It is distinguished from the related White Spider Orchid (Caladenia longicauda) by its pinkish tinged flowers and larger labellum with prominent, sometimes bifurcated fringe segments.

WA Conservation Code (Threatened Status)

Priority Four

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