Phebalium filifolium

Phebalium filifolium, commonly known as slender phebalium, is a species of upright, rounded shrub that is endemic to Western Australia. It has smooth branchlets covered with silvery scales, more or less cylindrical leaves with silvery scales on the lower side and pale to bright yellow flowers arranged in umbels of between three and eight on the ends of branchlets.

Description
Phebalium filifolium is an erect, spreading or rounded shrub that typically grows to a height of 0.3–1.5 m. Its branchlets are smooth and covered with silvery, scale-like hairs. The leaves are more or less cylindrical or bluntly triangular in cross-section, about 15 mm long and 1 mm wide, glabrous on the upper surface and covered with silvery or rust-coloured scales on the lower surface. The flowers are pale to bright yellow and borne in umbels of three to eight. The five sepals are 1–1.5 mm long, joined for half their length and covered with rust-coloured scales on the outside. The petals are broadly elliptical, 3.5–5.5 mm long and 2.5–3.5 mm wide, covered with silvery scales on the outside. Flowering occurs from September to December.

Taxonomy
Phebalium filifolium was first formally described in 1863 by Nikolai Turczaninow in Bulletin de la Société Impériale des Naturalistes de Moscou from specimens collected by James Drummond.

Distribution and habitat
This phebalium grows on sandy and gravelly soils and is found between Dalwallinu, Menzies, Katanning and the Cape Arid National Park in Western Australia.

Conservation status
This phebalium is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.