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Service Notice

The Western Australian Herbarium’s collections management system, WAHerb, and DBCA’s taxonomic names application, WACensus, have been set to read-only mode since 1 October 2025. Recent taxonomic changes are not reflected in Florabase, herbarium collections, or in the census. We are hoping to be able to reinstate services around December 15; we will provide an update at that time.

The notice period started at 9:00 am on Wednesday, 1 October 2025 +08:00 and will end at 12:00 pm on Monday, 15 December 2025 +08:00.

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Brachychiton obtusilobus Guymer

Reference
Austral.Syst.Bot. 1:254-255,Fig.25 (1989)
Conservation Code
Priority Four
Naturalised Status
Native to Western Australia
Name Status
Current

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

Grazyna Paczkowska, Descriptive Catalogue, 25 September 1996

Scientific Description

Tree, with glabrous stems. 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). 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; prickles absent (except perhaps a terminal awn); terminal awns or spines absent; calyx deciduous before maturity, not accrescent; 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).

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

Distribution

IBRA Regions
Carnarvon.
IBRA Subregions
Cape Range.
Local Government Areas (LGAs)
Exmouth.