- Reference
- Endl., Fenzl, Benth. & Schott, Enum.Pl. 71 (1837)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Decumbent to erect annual or perennial, herb, 0.05-0.35 m high, leaves linear to ovate; sepals narrowly oblong, 2-3 mm long; indusium 0.8-1 mm long. Fl. yellow, Aug to Dec or Jan to Feb or Apr. Grey or black sand, sandy clay. Seasonally-wet sites, swamps, plains, valleys, ridges.
Scientific Description
Stems unribbed. Leaves flat, 20-60 mm long, 3-4 mm wide, Indumentum absent (leaves glabrous); margins entire or toothed. Bracteoles absent. Pedicel pedicellate, Pedicel length the pedicels 12-25 mm long, Indumentum present, Hair type with absent hairs. Calyx lobes present, Calyx length 1.2 mm long, hairy, with sparse, simple hairs. Corolla yellow, 6.5-12 mm long, auriculate, not spurred, hairy on the outside, with sparse, simple hairs, glabrous on the inside; central lobes 2-4 mm long, with wings; outer lobes 3.5-7 mm long, wing present on both sides and clearly unequal, 0.5-1.5 mm wide on the narrower side, 0.7-2 mm wide on the broader side. Anthers free. Ovary inferior, not gibbose; style 3-5.5 mm long, hairy; indusium single, hairy; ovules more than two. Flowers in January, February, March, April, August, September, October, November and December. Occurs in the Geraldton Sandplains (GS), Swan Coastal Plain (SWA), Avon Wheatbelt (AW), Jarrah Forest (JF), Mallee (MAL), Warren (WAR) and Esperance Plains (ESP) IBRA Region(s), of the South West (SW) Botanical Province.
Distribution
- IBRA Regions
- Avon Wheatbelt, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.
- IBRA Subregions
- Dandaragan Plateau, Eastern Mallee, Fitzgerald, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Warren, Western Mallee.
- IMCRA Regions
- Central West Coast.
- Local Government Areas (LGAs)
- Armadale, Augusta Margaret River, Bayswater, Belmont, Beverley, Boyup Brook, Bridgetown-Greenbushes, Bunbury, Busselton, Canning, Capel, Carnamah, Chittering, Collie, Coorow, Corrigin, Cranbrook, Cuballing, Dandaragan, Denmark, Donnybrook-Balingup, Dumbleyung, Esperance, Gingin, Gnowangerup, Goomalling, Gosnells, Greater Geraldton, Irwin, Jerramungup, Kalamunda, Kent, Kojonup, Kulin, Kwinana, Manjimup, Melville, Mundaring, Murray, Nannup, Narrogin, Northam, Northampton, Pingelly, Plantagenet, Ravensthorpe, Rockingham, Stirling, Swan, Three Springs, Toodyay, Victoria Plains, Wagin, Wandering, Wanneroo, West Arthur, Wickepin, Woodanilling, York.