Sida hackettiana W.Fitzg.

Scientific Description

Herb or shrub, with hairy stems. Leaves 15-105 mm long, 5-40 mm wide, not lobed; margins entire; 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), 18 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 2 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, 4-4.5 mm long, the lobes fused half or more of their length or fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) absent, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow, 5-6 mm long, hairs or scales present, simple hairs (without tubercle bases) present, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 1.4-1.5 mm long; anthers 0.3-0.4 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs absent, stellate hairs present, gland-tipped hairs absent; style 1, 4-4.5 mm long, with five or numerous style branches or lobes, mostly glabrous, wing absent. Flowering time March, April, May or June. Distribution Botanical Province Northern, IBRA Bioregion Central Kimberley and Dampierland.