Calothamnus quadrifidus subsp. asper
"Calothamnus quadrifidus" subsp. "asper" is an erect shrub which sometimes grows to a height of and lacks a lignotuber. Its leaves are flat, linear to narrow egg-shaped with the narrow end towards the base, long and wide. The leaves are also rough and scaly, with scattered hairs. The flowers are a deep red colour and are arranged in clusters, usually on one side of the stem amongst the older leaves. The stamens are arranged in 4 claw-like bundles, each about long. Flowering occurs from August to September and is followed by fruits which are woody, barrel-shaped capsules, long. "Calothamnus quadrifidus" subsp. "asper" was first formally described in 2010 by Alex George in Nuytsia. It had originally been described in 1849 by Nikolai Turczaninow as "Calothamnus asper". The word ("asper") is a Latin word meaning "rough", "harsh" or "uneven". "Calothamnus quadrifidus" subsp. "asper" is found in the Wongan Hills district of the Avon Wheatbelt biogeographic region. "Calothamnus quadrifidus" subsp. "asper" is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife meaning that it is poorly known and from fewer than five locations.
Description
Calothamnus quadrifidus" subsp. It is similar to other subspecies of "Calothamnus quadrifidus" except that its leaves are short, flat and obviously rough and scaly when mature.