Brachychiton obtusilobus Guymer
Austral.Syst.Bot. 1:254-255,Fig.25 (1989)

Conservation Code: Priority Four
Naturalised Status: Native to Western Australia
Name Status: Current

Brief Description
Grazyna Paczkowska, Wednesday 25 September 1996

Tree, 3.5-6 m high. Fl. cream, Aug to Sep. Skeletal soils. Rocky limestone ranges, gorges, occasionally sandplains.


Beard’s Provinces: Eremaean Province.

IBRA Regions: Carnarvon.

IBRA Subregions: Cape Range.

Local Government Areas (LGAs): Exmouth.

Scientific Description
C. Hollister and K.R. Thiele, Wednesday 15 January 2020

Tree. Stems glabrous. Leaves 90-210 mm long, 70-160 mm wide, tripartitely lobed, simply (once-)lobed; margins entire; hairs and scales absent (leaves quite glabrous); stipules present but early deciduous (only visible on youngest leaves). Pedicel glabrous (?). Calyx green. Fruits indehiscent and splitting into sections (schizocarps), length-width ratio at least 1.5 times as long as wide, mericarps smooth, hairs and scales absent; apex rounded; calyx deciduous before maturity; carpels 5; seeds per loculus 2-4 or ≥5. Flowering time August or September. Distribution Botanical Province Eremaean, IBRA Bioregion Carnarvon. Conservation Code Priority Four (P4).