Hakea trifurcata (Sm.) R.Br. Two-leaf Hakea
Trans.Linn.Soc.London 10:183 (1810)

Conservation Code: Not threatened
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Monday 4 September 1995

Rounded or open, non-lignotuberous shrub, 1.5-3 m high, to 3.5 m wide. Fl. white/cream-pink, Apr to Oct. White, grey/brown sand over limestone or laterite, loam, gravel.

Distribution

Beard’s Provinces: Eremaean Province, South-West Province.

IBRA Regions: Avon Wheatbelt, Coolgardie, Esperance Plains, Geraldton Sandplains, Jarrah Forest, Mallee, Swan Coastal Plain, Warren.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Dandaragan Plateau, Eastern Mallee, Fitzgerald, Geraldton Hills, Lesueur Sandplain, Northern Jarrah Forest, Perth, Recherche, Southern Cross, Southern Jarrah Forest, Warren, Western Mallee.

IMCRA Regions: Central West Coast, Leeuwin-Naturaliste, WA South Coast.

Local Government Areas (LGAs): Albany, Armadale, Augusta-Margaret River, Beverley, Boddington, Boyup Brook, Brookton, Broomehill-Tambellup, Bruce Rock, Busselton, Carnamah, Chapman Valley, Chittering, Collie, Coorow, Corrigin, Cottesloe, Cranbrook, Cuballing, Dandaragan, Denmark, Dowerin, Dundas, Esperance, Gingin, Gnowangerup, Goomalling, Gosnells, Greater Geraldton, Harvey, Irwin, Jerramungup, Joondalup, Kalamunda, Katanning, Kent, Kojonup, Kondinin, Kulin, Kwinana, Lake Grace, Mandurah, Mingenew, Moora, Mundaring, Murray, Narembeen, Narrogin, Northam, Northampton, Perth, Pingelly, Plantagenet, Quairading, Ravensthorpe, Rockingham, Serpentine-Jarrahdale, Shark Bay, Subiaco, Swan, Tammin, Toodyay, Victoria Plains, Wagin, Wanneroo, Waroona, West Arthur, Wickepin, Williams, Wongan-Ballidu, York.

Scientific Description
Chris Hollister and Nicholas S. Lander, Tuesday 8 April 2008

Common Name(s). Kerosine Bush.

Habit and leaf form. Shrubs, 1.5–3 m high. Leaves alternate, leaves 20–70 mm long overall. Leaf blade 20–70 mm long, 1–1.5 mm wide (flat leaves 5–20), dissected or undissected, elliptic or linear (simple leaves), flat or terete; or pinnatifid; margins entire; indumentum absent.

Inflorescence and floral features. Inflorescence axillary, racemose. Flowers pedicellate, cream. Pedicel 4–6 mm long. Perianth (perigone) 8–9 mm long. Pistil 8–10 mm long. Pollen presenter lateral.

Fruit and seed features. Fruit 15–25 mm long, 6–9 mm wide; corky tetrahedral projections absent; red-brown and pale wood zones absent. Seed 13 mm long; wing discontinuous, apical.

Distribution. Western Australia. IBRA Bioregions ER: COO; SW: GS, or SWA, or AW, or JF, or MAL, or ESP.

Habitat. Amongst medium trees, or low trees, or tall (sclerophyll) shrubland; occurring on outcrops; in gravelly soil, or sand, or loam; occupying watercourses, swamps, breakaways and granite runoffs.

Flowering Time. April to October.

Etymology. Trifurcata (L.): tres – three + furca – fork; referring to the leaves of this species.

Descriptions were generated using DELTA format and DELTA software: Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993 onwards, 1995 onwards, 1998)