Abutilon sp. Dioicum (A.A. Mitchell PRP 1618)

Scientific Description

Shrub, with hairy stems. Leaves 15-55 mm long, 12-50 mm wide, not lobed; margins 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, 10-30 mm long; indumentum present, with simple hairs, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 7-15 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, 18-26 mm long, hairs or scales present or glabrous, simple hairs (without tubercle bases) present, stellate hairs absent, 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, 7-8 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, 7-8 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, 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 absent; calyx deciduous before maturity, not accrescent; carpels 5-40; seeds per loculus 2-4. Flowering time February, July or August. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara, Carnarvon, Gascoyne and Dampierland.