- Reference
- J.Adelaide Bot.Gard. 2:358 (1980)
- Conservation Code
- Not threatened
- Naturalised Status
- Native to Western Australia
- Name Status
- Current
Spindly, erect shrub, 0.5-2 m high. Fl. yellow/orange-yellow, May to Oct. Sandy or gravelly soils.
Scientific Description
Shrub, with hairy stems. Leaves 12-90 mm long, 10-65 mm wide, not lobed; margins crenate, sinuate or serrate; 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, 7.5-17 mm long; indumentum present, with simple hairs, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 6-8.5 mm long, the lobes fused less than half 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, 7-17 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 2-4 mm long; anthers 0.4-0.5 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs and scales absent (ovary quite glabrous); style 1, 2-4 mm long, with numerous style branches or lobes, hairy for most of length, 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) present, stellate hairs absent, Sessile glands absent, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent; apex rounded; prickles absent (except perhaps a terminal awn); terminal awns or spines absent; calyx persistent to mature fruit, not accrescent; carpels 16; seeds per loculus 2-4. Flowering time May, June, July, August, September or October. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Great Sandy Desert, Tanami, Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Central Ranges, Murchison, Dampierland and Ord-Victorian-Plain.
Distribution
- IBRA Regions
- Carnarvon, Central Ranges, Dampierland, Gascoyne, Great Sandy Desert, Little Sandy Desert, Murchison, Ord Victoria Plain, Pilbara, Tanami.
- IBRA Subregions
- Ashburton, Augustus, Cape Range, Carnegie, Chichester, Eastern Murchison, Fitzroy Trough, Fortescue, Hamersley, Mackay, Mann-Musgrave Block, McLarty, Pindanland, Purnululu, Roebourne, Rudall, Tanami Desert, Western Murchison.
- IMCRA Regions
- Pilbara (nearshore).
- Local Government Areas (LGAs)
- Ashburton, Broome, Carnarvon, Derby-West Kimberley, East Pilbara, Exmouth, Halls Creek, Karratha, Meekatharra, Ngaanyatjarraku, Port Hedland, Upper Gascoyne, Wiluna.