Skip to main content

Jacksonia sternbergiana Huegel

Bot.Arch.(Hugel) 3 (1837)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Erect, weeping shrub or tree, 1.5-5 m high. Fl. yellow-orange, Jan to Dec. Sandy soils. Along rivers & creeks, near swamps, flats, dunes.

Grazyna Paczkowska, Descriptive Catalogue, 26 June 1996

Scientific Description

Erect, shrub, spindly shrub (broom-like). Stems terete, not spiny, hairy; pustules or glands absent. Leaves or phylloclades absent or apparently so (reduced to scales), alternate, not continuous with stem, hairy, with simple hairs, flat with flat margins; margins entire; tubercles absent, 1-3.5; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 3.5-4 mm long, hairy. Bracteoles present and persistent, 0.5-1.5 mm long. Calyx 9.2-12 mm long, not accrescent, hairy, with simple hairs, ribless; pustules or glands absent. Corolla 9-10 mm long, multicoloured, mostly yellow or orange, with some yellow or orange spots, streaks or blotches; claws present; standard 7-7.8 mm long, glabrous, not auriculate, wings 7.5-8 mm long, not auriculate, keel 8-8.5 mm long, not beaked, not auriculate, glabrous. Stamens ten; anthers 1.4-1.5 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 6-7.6 mm long. Ovary hairy or glandular; style 8-10 mm long, hairy or glandular towards the base, not bearded, terete. Fruit not constricted between the seeds, round in cross-section. Flowers in January, February, March, April, May, June, July, August, September, October, November and December. Occurs in the South-West Botanical Province, in the Geraldton Sandplains, Avon Wheatbelt, Jarrah Forest, Mallee and Swan Coastal Plain IBRA regions.

C. Hollister and K.R. Thiele, 24 October 2023


IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain.
IBRA Subregions
Dandaragan Plateau, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Southern Jarrah Forest, Western Mallee.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Armadale, Beverley, Boyup Brook, Broomehill-Tambellup, Canning, Carnamah, Chapman Valley, Chittering, Claremont, Cockburn, Coorow, Cottesloe, Cranbrook, Cuballing, Dandaragan, Fremantle, Gingin, Goomalling, Gosnells, Greater Geraldton, Harvey, Irwin, Kalamunda, Katanning, Kojonup, Kulin, Kwinana, Mandurah, Mingenew, Moora, Mundaring, Murray, Narrogin, Northam, Northampton, Perth, Serpentine-Jarrahdale, South Perth, Stirling, Subiaco, Swan, Three Springs, Toodyay, Victoria Plains, Wagin, Wandering, Wanneroo, Waroona, West Arthur, Woodanilling, York.