WANOSCG Orchid Fact Sheet

Caladenia interjacens

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Name and Authority

Caladenia interjacens Hopper & A.P.Br.

Synonyms (previous names)

Arachnorchis interjacens; Calonemorchis interjacens

Common Name

Walpole Spider Orchid

Complex Name

Caladenia huegelii (King Spider Orchids)

Originally Described by

Stephen Hopper & Andrew Brown in Nuytsia 14:98-101, Figs. 15O-S (2001)

Distribution and Habitat

Walpole to West Cliff Point, growing in sandy soil on consolidated coastal dunes.

Flowering Months

· · · · · · · · Sep Oct · ·

Description

A distinctive, coastal species 300–600 mm high with a hairy leaf 80–200 mm long by 5–15 mm wide and up to two white to pale pinkish-white flowers 50–100 mm across.

Distinguishing Features

It is distinguished from superficially similar White Spider Orchid (Caladenia longicauda) by its shorter petals, clubbed sepals and often pale pink suffused flowers.

WA Conservation Code (Threatened Status)

Priority Four

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