Abutilon macrum F.Muell.

Scientific Description

Shrub, with hairy stems. Leaves 25-55 mm long, 12-20 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). Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 12-23 mm long; indumentum present, with absent, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 3-3.5 mm long, the lobes fused less than half their length, Sessile glands absent, stellate hairs present, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow, 5-6 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 2.2-4.5 mm long; anthers 0.1-0.4 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs and scales absent (ovary quite glabrous); style 1, 1.7 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 and scales absent, Sessile glands absent; apex distinctly flat-topped; prickles absent (except perhaps a terminal awn); terminal awns or spines present; calyx persistent to mature fruit, not accrescent; carpels 13-15; seeds per loculus 2-4. Flowering time August or September. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Great Sandy Desert, Pilbara, Little Sandy Desert, Gibson Desert, Central Ranges and Ord-Victorian-Plain.