Petrophile macrostachya R.Br.
Prodr. Suppl. 7 (1830)

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

Brief Description
Grazyna Paczkowska, Tuesday 22 August 1995

Erect, compact or spreading, prickly shrub, 0.3-1.2 m high. Fl. yellow-cream, Jul to Nov. White, yellow/brown sand, gravel. Sandplains.


Beard’s Provinces: South-West Province.

IBRA Regions: Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain.

IBRA Subregions: Avon Wheatbelt P1, Avon Wheatbelt P2, Dandaragan Plateau, Geraldton Hills, Lesueur Sandplain, Northern Jarrah Forest, Perth.

Local Government Areas (LGAs): Armadale, Bayswater, Cambridge, Carnamah, Chapman Valley, Claremont, Coorow, Dandaragan, Gingin, Gosnells, Greater Geraldton, Irwin, Kalamunda, Kwinana, Nedlands, Northampton, Perth, Serpentine-Jarrahdale, Shark Bay, Stirling, Subiaco, Swan, Victoria Park, Victoria Plains, Wanneroo.

Scientific Description
Chris Hollister, Nicholas Lander and Kevin Thiele, Thursday 7 February 2019

Shrubs, 0.5-1 m high; branchlets hairy, with straight hairs. Leaves alternate, 30-80 mm mm long, glabrous; lamina flat, twice or more divided, pinnately divided, deeply divided, with (7-)9-17(-23) points or lobes; distance from base of leaf to lowest lobe 25-45 mm. Inflorescences not viscid, yellow. Perianth 7-9 mm long, glabrous; pistil 10-14 mm long; pollen presenter fusiform, hairy, 2-3.2 mm long. Cone with persistent scales, 20-25 mm long. Flowers in July, August, September, October or November. Occurs in the South-west (SW) Botanical Province(s), in the Geraldton Sandplains (GS), Swan Coastal Plain (SWA), Avon Wheatbelt (AW) or Jarrah Forest (JF) IBRA subregion(s).