Androcalva luteiflora (E.Pritz.) C.F.Wilkins & Whitlock
Yellow-flowered Rulingia

Scientific Description

Shrub, with hairy stems. Leaves 10-40 mm long, 4-28 mm wide, not lobed; margins sinuate; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves), 3-10 mm long. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 5-8 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx cream or white, 4-5.2 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, 2.8-4.5 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens five, free and inserted at the base of the ovary; filaments present, 0.7-1 mm long; anthers 0.6-0.8 mm long, indumentum absent (anthers glabrous). Staminodes present, appendages absent. Ovary hairs and scales absent (ovary quite glabrous); styles several, free and separate, arising from the summit of the ovary, 0.7-1 mm long, with four or five 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, 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 5; seeds per loculus 2-4. Flowering time July, August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Carnarvon, Gascoyne, Central Ranges, Coolgardie, Geraldton Sandplains and Avon Wheatbelt.