Leptocarpus trisepalus (Nees) B.G.Briggs
Telopea 18:218 (2015)

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

Distribution

Beard’s Provinces: South-West Province.

IBRA Regions: Jarrah Forest, Swan Coastal Plain, Warren.

IBRA Subregions: Perth, Southern Jarrah Forest, Warren.

Local Government Areas (LGAs): Augusta-Margaret River, Bunbury, Busselton, Capel, Donnybrook-Balingup, Manjimup, West Arthur.

Scientific Description
Chris Hollister and Kevin Thiele, Friday 1 September 2017

Rhizomes tufted, glabrous. Basal sheath glabrous, dull, striate. Culms terete, internal structure (at base of culm) hollow in upper part, glabrous, not striate, not marbled, not fasciculate. Culm 320-660 mm long. Sheaths (including blade) appressed throughout, dull, striate, glabrous, margins translucent. Apex elongated, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences distinctly dissimilar, posture (male inflorescences only) Distinctly drooping, Culms unbranched below the inflorescence. Male spikelet 5.2-7 mm long. Subtending bract glabrous, Outer bract 6-10 mm long, margins firm and opaque, Apex acuminate to attenuate. Perianth glabrous. 2-2.3 mm long. Inner bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Inner bract 5-6 mm long. Filament 0-0.1 mm long. Anther 1.5-1.6 mm long. Female spikelet 10-15 mm long. Subtending bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Outer bract 6.5-7 mm long. Perianth glabrous. 2.8-3.5 mm long. Inner bracts 3.8-6.5 mm long, glabrous, margins firm and opaque, Apex acuminate to attenuate. Style three (or three-branched). 4.5-6 mm long. Fruit indehiscent (nut). Flowering Time February or November. Botanical Province South-West, IBRA Bioregions Swan Coastal Plain, Jarrah Forest or Warren.