Acacia filamentosa
Acacia filamentosa is a species of flowering plant in the family Fabaceae and is endemic to the north of Western Australia. It is a shrub with ascending, thread-like to curved or terete phyllodes, densely flowered spikes of yellow flowers and linear, crusty to thinly leathery pods.
Description
Acacia filamentosa is a glabrous shrub that typically grows to a height of and sometimes has resinous branchlets. Its phyllodes are ascending, coarsely thread-like, curved to shallowly curved, terete, long and about wide with about eight, very obscure veins. The flowers are borne in two densely flowered spikes long and in diameter, in axils on peduncles long. Flowering occurs from June to September, and the pods are crusty to thinly leathery and glabrous, up to long, wide and striated. The seeds are narrowly oblong, long, brown with a yellowish band and a pale yellowish, top-shaped aril.
Taxonomy
Acacia filamentosa was first formally described in 1983 by Bruce Maslin from specimens collected near the Gibb River Road, near the turnoff to Ellenbrae in 1980. The specific epithet means 'abounding in threads', referring to the phyllodes.
This species of wattle grows on sandstone hills, and is only known from a few locations in the Kimberley region of Western Australia, including Adcock Gorge and near Kalumburu.
Acacia filamentosa is listed as "not threatened" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions.