Sporadanthus strictus (R.Br.) B.G.Briggs & L.A.S.Johnson

Telopea 8:30 (1998)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Rhizomatous, robust perennial, herb (sedge-like), 0.3-1 m high. Swampy black sand or clay. Seasonally wet swamps.

Grazyna Paczkowska, Descriptive Catalogue, 11 August 1994

Scientific Description

Rhizomes tufted, glabrous. Basal sheath glabrous, dull, striate. Culms flattened, internal structure (at base of culm) hollow, glabrous, striate, marbled, not fasciculate. Culm 330-860 mm long. Sheaths (including blade) spreading, dull, not striate, glabrous, margins translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences similar, posture (male inflorescences only) More or less erect, Culms unbranched below the inflorescence. Female spikelet 5-10 mm long. Subtending bract glabrous, margins firm and opaque, Apex acuminate to attenuate. Outer bract 2.8-4 mm long. Perianth glabrous. 2.8-3 mm long. Inner bracts 2-4 mm long, glabrous, margins firm and opaque, Apex acuminate to attenuate. Style three (or three-branched). 1.5-2 mm long. Fruit trilocular (capsule). Flowering Time October (?). Botanical Province South-West, IBRA Bioregions Jarrah Forest or Warren. Conservation Code Priority One (P1).

C. Hollister and K.R. Thiele, 1 September 2017


IBRA Regions
Jarrah Forest, Swan Coastal Plain, Warren.
IBRA Subregions
Perth, Southern Jarrah Forest, Warren.
Local Government Areas (LGAs)
Albany, Augusta Margaret River, Capel, Denmark, Manjimup, Nannup, Plantagenet.