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Triumfetta antrorsa Halford

Reference
Austrobaileya 4:547-548,Fig.12A (1997)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub, 0.6-2 m high. Fl. yellow, Apr to Jun. Sandy, sandy loamy or rocky skeletal soils. Creek banks, scarps, quartzite or basalt ridges, limestone outcrops.

Amanda Spooner, Descriptive Catalogue, 7 October 1997
1000 km
Leaflet Map data © OpenStreetMap contributors

Scientific Description

Shrub, with hairy stems. Leaves 30-115 mm long, 10-60 mm wide, not lobed; margins dentate; hairy, 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, 3.5-8 mm long; indumentum present, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx 12-14 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 present, number of ribs absent. Corolla yellow, 7-11 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, free and inserted at the base of the ovary; filaments present, 9.5-11 mm long; anthers 0.5-0.9 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs or scales present, simple hairs present, stellate hairs absent, gland-tipped hairs absent; style 1, with a lobed or capitate stigma, 10-11 mm long, with one style branches or lobes, mostly glabrous, wing absent. Fruits indehiscent and not splitting into sections (drupes), length-width ratio more or less as long as wide, hairs or scales present, simple hairs (without tubercle bases) present, stellate hairs absent, 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 present; calyx persistent to mature fruit. Flowering time April, May or June. Distribution Botanical Province Northern, IBRA Bioregion Central Kimberley and Ord-Victorian-Plain.

C. Hollister and K.R. Thiele, 11 August 2023

Distribution

IBRA Regions
Central Kimberley, Ord Victoria Plain.
IBRA Subregions
Hart, Purnululu, South Kimberley Interzone.
Local Government Areas (LGAs)
Derby-West Kimberley, Halls Creek.