WANOSCG Orchid Fact Sheet

Caladenia ultima

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Name and Authority

Caladenia ultima Hopper & A.P.Br.

Synonyms (previous names)

Calonema ultima; Calonemorchis ultima; Jonesiopsis ultima

Common Name

Late Spider Orchid

Complex Name

Caladenia filamentosa (Wispy Spider Orchids)

Originally Described by

Stephen Hopper & Andrew Brown in Nuytsia 14:277-279, Fig.70 (2001)

Distribution and Habitat

East of Manjimup to Stirling Range, growing in clay and sandy-clay soil on the edges of seasonally wet flats and creek lines, flowering best in the season following summer fire.

Flowering Months

· · · · · · · · · Oct Nov Dec

Description

A late flowering species 150–250 mm high with a hairy leaf 60–150 mm long by 2–4 mm wide and up to three creamy-white to creamy-yellow flowers 60–90 mm across.

Distinguishing Features

It is distinguished from other members of the Caladenia filamentosa complex by its late October- December flowering period.

WA Conservation Code (Threatened Status)

Priority Two

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