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Drakaea micrantha
''Drakaea micrantha'', commonly known as the dwarf hammer orchid is a species of orchid endemic to the south–west of Western Australia. It is similar to other hammer orchids in that it is pollinated by a single species of male thynnid wasp using sexual deception. The orchid's labellum is similar in shape and scent to a flightless female thynnid wasp. It has a single silvery-grey, heart-shaped leaf with prominent green veins and a stem up to long. The species is only known from a scattered populations in the south west of the state and has been declared "vulnerable" by the Australian government and "threatened" by the government of Western Australia.
== Description ==
''Drakaea micrantha'' is similar to others in the genus in that it has a single, ground hugging leaf and an underground tuber. In this case, the leaf is heart shaped, about in diameter, silvery-grey dark green and rather glossy with darker green veins radiating from the leaf attachment. The stem is long and the stalk of the single flower is long.〔
Its flower is also similar to those of other hammer orchids in that the labellum resembles a flightless female thynnid wasp however it can be distinguished by having a spine on the column, and a labellum with a straight end and a narrow "neck". The sepal at the back of the flower is long and the two at the sides are . The petals are also long. The insect-like labellum has a head about half as long as the body and is hairy for at least half its length. The "body" of the labellum is dark-coloured, slightly swollen and has a few hairs. Flowers appear in September and October.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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