Cyanothamnus ramosus Lindl. subsp. ramosus

Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Scientific Description

Shrub, spines absent; branchlets smooth, without distinct raised glands, +/- cylindrical in cross-section, glabrous. Leaves opposite, compound, 10-28 mm long, with 3 leaflets, each 7-20 mm long, 0.5-0.7 mm wide, flat, the margins flat, smooth, without distinct raised glands, glabrous; stipular excrescences absent. Flowers axillary, solitary; pedicels 3-10 mm long; calyx present, 1.5(-4.5) mm long, smooth, without distinct raised glands, glabrous; corolla blue, petals four, 3.5-6.5 mm long, valvate (not overlapping), free, glabrous; stamens twice as many as petals, 2 mm long, smooth, ciliate (with a marginal fringe of hairs); anthers 1 mm long, with an appendage; style 0.2(-0.3) mm long. Flowers in July, August, September and October. Occurs in the South-West Botanical Province, in the Jarrah Forest, Swan Coastal Plain and Geraldton IBRA region(s).

C. Hollister and K.R. Thiele, 8 December 2020


IBRA Regions
Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Lesueur Sandplain, Northern Jarrah Forest, Perth.
Local Government Areas (LGAs)
Chittering, Coorow, Dandaragan, Gingin, Kalamunda, Mundaring, Serpentine-Jarrahdale, Swan, Victoria Plains, York.