Sida sp. Golden calyces glabrous (H.N. Foote 32)

Scientific Description

Herb or shrub, with hairy stems. Leaves 7-18 mm long, 6-15 mm wide, not lobed; margins crenate or serrate; hairy, with absent, with stellate hairs, with tubercle-based simple hairs absent, with gland-tipped hairs absentwith scales absent, Sessile glands absent; stipules present and persistent to older leaves, 5-7 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 8-20 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 3-5.2 mm long, the lobes 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, 6-9 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 1-1.6 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, 4.5-5.5 mm long, with four or numerous style branches or lobes, mostly glabrous, wing absent. Fruits dehiscent (capsules and follicles), length-width ratio more or less as long as wide, mericarps wrinkled, 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 rounded; prickles absent (except perhaps a terminal awn); terminal awns or spines absent; calyx persistent to mature fruit, not accrescent; carpels 7; seeds per loculus 1. Flowering time April, August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Yalgoo, Murchison, Great Victorian Desert, Coolgardie and Avon Wheatbelt.