- Reference
- J.Bot. 31:268 (1893)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Erect or straggly annual or perennial, herb or shrub, (0.1-)0.5-2.5(-4) m high. Fl. yellow-orange, Jan to Jul or Sep. Sandy soils, clay, gravel. Roadsides, river & creek banks, limestone ridges.
Scientific Description
Shrub, with hairy stems. Leaves 20-125 mm long, 10-70 mm wide, not lobed; margins crenate; hairy, with Simple hairs (without tubercle bases), with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves). Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 20-22 mm long; indumentum present, with simple hairs, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 9-12 mm long, the lobes fused half or more of their length, Sessile glands absent, simple hairs (without tubercle bases) present, stellate hairs present, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow or orange, 20-25 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 9-10 mm long; anthers 0.3-0.4 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs and scales absent (ovary quite glabrous); style 1, 10-12 mm long, with numerous style branches or lobes, mostly glabrous, wing absent. Fruits dehiscent (capsules and follicles), length-width ratio more or less as long as wide, hairs or scales present, simple hairs (without tubercle bases) absent, stellate hairs present, Sessile glands absent, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent; apex distinctly flat-topped; prickles absent (except perhaps a terminal awn); terminal awns or spines present; calyx persistent to mature fruit, not accrescent; seeds per loculus 2-4. Flowering time January, February, March, April, May, June, July or September. Distribution Botanical Province Northern, IBRA Bioregion North Kimberley, Victoria Bonaparte, Central Kimberley, Dampierland and Ord-Victorian-Plain.
Distribution
- IBRA Regions
- Central Kimberley, Dampierland, Great Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Tanami, Victoria Bonaparte.
- IBRA Subregions
- Chichester, Fitzroy Trough, Hart, Keep, McLarty, Mitchell, Mount Eliza, Pentecost, Pindanland, Purnululu, Tanami Desert.
- Local Government Areas (LGAs)
- Broome, Derby-West Kimberley, East Pilbara, Halls Creek, Wyndham-East Kimberley.