Mobilabium

Mobilabium hamatum, commonly known as hook-leaf, is the only species in the genus Mobilabium from the orchid family, Orchidaceae. It is an epiphytic orchid with between three and twelve stiff, oblong leaves with a hooked tip. There are up to fifteen star-shaped, cream-coloured, pale green or brownish flowers with red or purple markings. The labellum has three lobes with the middle lobe hollow and containing sticky nectar. It mainly grows on rainforest trees at higher altitudes and is found in tropical North Queensland.

==Description== Mobilabium hamatum is an epiphytic herb with many stiff roots and upright or hanging stems long. Each stem has between three and fifteen stiff, oblong, yellowish green leaves long and wide with a hooked tip. Between five and fifteen cream-coloured, pale green or brownish flowers with brownish or purplish markings, long and wide are borne on flowering stems long. The sepals and petals spread widely apart from each other, the sepals about long and wide, the petals slightly shorter and narrower. There is a hinge between the column and the labellum, the latter with three lobes. The middle lobe is rounded and hollow, containing sticky nectar. Flowering occurs from July to August.