Species of shrub endemic to the southwest of Western Australia
Isopogon attenuatus is a species of plant in the family Proteaceae and is endemic to the south-west of Western Australia. It is a shrub with oblong to spatula-shaped or linear leaves and spherical heads of yellow flowers.
Description
Isopogon attenuatus is a shrub that typically grows to a height of 0.2–2 m (7.9 in – 6 ft 6.7 in) and has mostly glabrous, brownish branchlets. The leaves are oblong to spatula-shaped or linear, 80–240 mm (3.1–9.4 in) long and 10–20 mm (0.39–0.79 in) wide on a petiole about 50 mm (2.0 in) long, with a sharp point on the tip. The flowers are arranged in sessile, more or less spherical heads 40–50 mm (1.6–2.0 in) in diameter. The involucral bracts are egg-shaped, the flowers 10–15 mm (0.39–0.59 in) long and creamy yellow to pale yellow. Flowering occurs from September to February and the fruit is a hairy nut, fused in a more or less spherical head about 25 mm (0.98 in) in diameter.[2][3]
Taxonomy
Isopogon attenuatus was first formally described in 1810 by Robert Brown in the Transactions of the Linnean Society of London.[4][5]
Distribution and habitat
This isopogon grows in woodland with a heathy understorey, in scattered population from near Perth to Albany and Mount Manypeaks, in the south-west of Western Australia.[2][3]
Conservation status
Isopogon attenuatus is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[3]
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