Arthrochilus irritabilis

Clubbed elbow orchid

The clubbed elbow orchid grows in woodland, forest and heath, sometimes forming large colonies. It is widespread and common between Ingham and Brisbane.

It has up to five leaves and up to thirty light greenish or reddish, insect-like flower with reddish, hair-like glands on its labellum.

It is a terrestrial, perennial, deciduous, sympodial orchid with an underground tuber which produces daughter tubers on the end of root-like stolons. It has between three and five narrow lance-shaped, bluish green leaves 30–80 mm long and 8–14 mm wide on side growth at the base of the flowering stem. Between five and thirty light greenish or reddish insect-like flowers, 10–14 mm long are borne on a thin, wiry, green to reddish flowering stem 120–350 mm tall. The dorsal is 8–11 mm long, about 2 mm wide, folded lengthwise near the tip and directed more or less downwards. The lateral sepals are oblong, curved, 5–7 mm long and about 1 mm wide. The petals are linear, 5–7 mm long and about 1 mm wide. The lateral sepals and petals all turn downwards towards the ovary. The labellum is about 5 mm long, 1 mm wide with a reddish base. The labellum callus is insect-like, about 2.5 mm long with its central area crowded with hair-like, reddish or purplish glands. The tip of the callus is about 1 mm (0.04 in) long and covered with shiny, blackish glands. The column is curved, 7–8 mm long with two pairs of curved triangular wings.

Flowering occurs from November to February.

Source: Wikipedia

Scroll to Top