Sida ammophila J.H.Willis
Muelleria 1:131 (1967)

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

Brief Description
Amanda Spooner, Monday 22 September 1997

Sprawling shrub, to 0.8 m high. Fl. yellow. Sand dune.

Distribution

Beard’s Provinces: Eremaean Province.

IBRA Regions: Central Ranges, Gascoyne, Great Sandy Desert, Great Victoria Desert, Murchison, Tanami.

IBRA Subregions: Carnegie, Eastern, Maralinga, Mackay, Mann-Musgrave Block, Tanami P1, Western Murchison.

Local Government Areas (LGAs): East Pilbara, Halls Creek, Laverton, Meekatharra, Ngaanyatjarraku, Wiluna.

Scientific Description
Chris Hollister and Kevin Thiele, Thursday 18 May 2017

Herb or shrub. Stems hairy. Leaves 8-45 mm long, 2-8 mm wide, not lobed; margins crenate; indumentum present, with stellate hairswith absent; stipules present and persistent to older leaves, 4-6 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 7-15 mm long; indumentum present, with stellate hairs. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 7 mm long, the lobes fused less than half their length, stellate hairs present. Corolla yellow, 4.5-5 mm long, glabrous. Stamens many, united and arising from a staminal tube around the style; filaments present, 0.4-0.6 mm long; anthers 0.3-0.4 mm long. Ovary hairs and scales absent (ovary quite glabrous); style 1, 2-4.5 mm long, with four or numerous style branches or lobes, mostly glabrous. Flowering time March, May or August. Distribution Botanical Province Eremaean, IBRA Bioregion Great Sandy Desert, Tanami, Gascoyne or Murchison.