Brachychiton tridentatus Guymer
Austral.Syst.Bot. 1:228-291,Fig.42 (1989)

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

Brief Description
Grazyna Paczkowska, Wednesday 25 September 1996

Tree, 2-6 m high. Fl. pink-red/red & green, Jun to Sep. Sand, sandstone. Rocky hills & ridges.


Beard’s Provinces: Northern Province.

IBRA Regions: Northern Kimberley.

IBRA Subregions: Berkeley, Mitchell.

IMCRA Regions: Kimberley.

Local Government Areas (LGAs): Wyndham-East Kimberley.

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

Tree. Stems glabrous. Leaves 110-250 mm long, 100-370 mm wide, not lobed or tripartitely lobed, simply (once-)lobed; margins entire; hairs and scales absent (leaves quite glabrous) or indumentum present, with non-tubercle-based simple hairs, with stellate hairs; stipules present but early deciduous (only visible on youngest leaves). Perianth of one whorl only (the visible whorl is a calyx, sometimes petaloid). Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, pink or red, 18-30 mm long, the lobes fused half or more of their length, stellate hairs present, Terminal appendages absent, number of ribs absent. Stamens many, united and arising from a staminal tube around the style; anthers 1.5 mm long, indumentum absent (anthers glabrous). Staminodes present, appendages absent. 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 June, July, August or September. Distribution Botanical Province Northern, IBRA Bioregion North Kimberley. Conservation Code Priority Three (P3).