Cleopatra's needles

(Thelymitra apiculata)

galery

Description

Thelymitra apiculata, commonly called Cleopatra's needles, is a species of orchid in the family Orchidaceae and endemic to the south-west of Western Australia. It has a single erect, curved, dark green leaf with a purplish base and up to twelve purplish flowers with darker blotches and golden yellow edges. There are two yellow arms on the sides of the column, each ending with a needle-like point. Thelymitra apiculata is a tuberous, perennial herb with an erect, channelled, dark green, linear to lance-shaped leaf 40–80 mm (2–3 in) long and 7–10 mm (0.3–0.4 in) wide with a purplish base. Between two and twelve glossy, bright purple to pinkish purple flowers with darker spots and golden yellow edges, 25–30 mm (0.98–1.2 in) wide are borne on a flowering stem 200–350 mm (8–10 in) tall. The sepals and petals are 12–17 mm (0.5–0.7 in) long and 4–6 mm (0.16–0.24 in) wide. The column is a similar colour to the petals, 5–7 mm (0.2–0.3 in) long and about 2 mm (0.08 in) wide with a cluster of small finger-like glands on its back. There are two erect yellow arms on the sides of the column, each ending in a needle-like point. Flowering occurs from late May to July. Cleopatra's needles was first formally described in 1984 by Alex George from a specimen collected near Badgingarra and given the name Thelymitra variegata var. apiculata. The description was published in Nuytsia. In 1989 David Jones and Mark Clements raised the variety to species status as T. apiculata. The specific epithet (apiculata) is a Latin word meaning "small pointed", referring to the short, needle-like tip of the column arms. Thelymitra apiculata is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, meaning that is rare or near threatened. Thelymitra, commonly known as sun orchids, is a genus of more than 100 species of plants in the orchid family, Orchidaceae. Unlike most other orchids, sun orchids lack a highly modified labellum and all three petals are similar in size, shape and colour. The column is, however, highly modified and usually has prominent wings or glands which are helpful in identifying the species. Most sun orchids close their flowers at night, in cloudy or cool weather, giving rise to their common name. The scientific name means "woman's hood" and refers to the hooded column present in most, but not all species. Most species are endemic to Australia although some are found as far from there as the Philippines and Indonesia.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Tracheophyta
Class: Liliopsida
Order:Asparagales
Family:Orchidaceae
Genus:Thelymitra
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