Chordifex laxus (R.Br.) B.G.Briggs & L.A.S.Johnson
Telopea 8:25 (1998)

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

Brief Description
Grazyna Paczkowska, Thursday 11 August 1994

Rhizomatous, erect perennial, herb, 0.2-0.5 m high. Fl. yellow-brown, Oct to Dec. Sandy, loamy & clayey soils. Seasonally wet flats, swamps.


Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Esperance Plains, Jarrah Forest, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P2, Fitzgerald, Northern Jarrah Forest, Perth, Recherche, Southern Jarrah Forest, Warren.

Local Government Areas (LGAs): Albany, Armadale, Bridgetown-Greenbushes, Broomehill-Tambellup, Busselton, Capel, Cranbrook, Denmark, Donnybrook-Balingup, Esperance, Jerramungup, Manjimup, Plantagenet, Ravensthorpe.

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

Rhizomes spreading, hairy. Basal sheath hairy, dull, striate. Culms terete, internal structure (at base of culm) hollow, glabrous, striate, not marbled, not fasciculate. Culm 190-390 mm long. Sheaths (including blade) spreading, glossy, striate, glabrous, margins not translucent. Apex recurved, glabrous. Dioecious (with separate male and female plants). Male and female inflorescences distinctly dissimilar, posture (male inflorescences only) More or less erect, Culms unbranched below the inflorescence. Male spikelet 7-15 mm long. Subtending bract glabrous, Outer bract 4-7 mm long, margins thin and translucent, Apex acute. Perianth glabrous. 4-5 mm long. Inner bract glabrous, margins thin and translucent, Apex acuminate to attenuate. Inner bract 6.5-8.5 mm long. Filament 1.2-5 mm long. Anther 2-2.4 mm long. Female spikelet 8-10 mm long. Subtending bract hairy, margins thin and translucent, Apex acuminate to attenuate. Outer bract 7-8 mm long. Perianth glabrous. 3-4 mm long. Inner bracts 3-3.5 mm long, glabrous, margins thin and translucent, Apex acuminate to attenuate. Style two (or two-branched). 3.5-4 mm long. Fruit bilocular (capsule). Flowering Time October, November or December. Botanical Province South-West, IBRA Bioregions Swan Coastal Plain, Avon Wheatbelt, Jarrah Forest, Warren or Esperance.