ⓘ Needle-leaved Smokebush


ⓘ Needle leaved smokebush

It grows as a spindly shrub, either erect or sprawling, from 0.3 to 1.7 metres 10 to 70 in high, usually with several unbranched stems growing from the base of the plant. It has slender, needle like leaves up to 10 centimetres 4 in long, and dense panicles of white, red or pink flowers, each about 8 millimetres 0.3 in long.


1. Taxonomy

It was first published in John Lindleys 1839 A Sketch of the Vegetation of the Swan River Colony, based on specimens collected by James Drummond. Lindley referred to it as a "strange species" that "might be mistaken for a Colletia." It has since had a thoroughly uncomplicated taxonomic history, with no nomenclatural or taxonomic synonyms published. In 1995, however, as part of her treatment of Conospermum for the Flora of Australia series of monographs, Eleanor Bennett published a subspecies, C. acerosum subsp. hirsutum, based on material collected in 1901 by geologist and archaeologist William Dugald Campbell; thus the autonym C. acerosum subsp. acerosum was also invoked. C. acerosum subsp. acerosum has fine red hairs around the flowers and glabrous stems; subspecies hirsutum has fine hairs on the younger stems and leaf bases.


2. Distribution and habitat

It occurs in sandy soil, often over laterite, from the Murchison River south to Cape Leeuwin; thus it occurs mainly within the Geraldton Sandplains and Swan Coastal Plain biogeographic regions, with some populations in the Avon Wheatbelt and Jarrah Forest regions. Its Flora of Australia entry, published in 1995, states that "there is also one doubtful collection from Norseman", but this is not or is no longer recorded within the West Australian Herbariums FloraBase database.

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