Brachychiton gregorii F.Muell. Desert Kurrajong
Pl.Indig.Col.Vict. 1:157 (1862)

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

Brief Description
Grazyna Paczkowska, Wednesday 25 September 1996

Tree, 3-12 m high. Fl. cream-yellow/green & red, Nov to Dec or Jan. Red sand, sandy loam. Undulating sand dunes, rocky ridges & slopes.

Distribution

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

IBRA Regions: Avon Wheatbelt, Carnarvon, Central Ranges, Coolgardie, Gascoyne, Geraldton Sandplains, Gibson Desert, Great Victoria Desert, Little Sandy Desert, Murchison, Pilbara, Yalgoo.

IBRA Subregions: Augustus, Avon Wheatbelt P1, Cape Range, Carnegie, Central, Chichester, Eastern Goldfield, Eastern Murchison, Edel, Geraldton Hills, Hamersley, Lateritic Plain, Mann-Musgrave Block, Shield, Southern Cross, Tallering, Trainor, Western Murchison, Wooramel.

Local Government Areas (LGAs): Ashburton, Coolgardie, Cue, East Pilbara, Exmouth, Kalgoorlie-Boulder, Laverton, Leonora, Meekatharra, Menzies, Mount Magnet, Mount Marshall, Murchison, Ngaanyatjarraku, Northampton, Perenjori, Sandstone, Shark Bay, Westonia, Wiluna, Yalgoo, Yilgarn.

Scientific Description
Chris Hollister and Kevin Thiele, Tuesday 29 August 2017

Tree. Stems glabrous. Leaves 100-155 mm long, 45-150 mm wide, tripartitely lobed or palmately lobed, simply (once-)lobed; margins entire; hairs and scales absent (leaves quite glabrous); stipules present but early deciduous (only visible on youngest leaves). Perianth of one whorl only (the visible whorl is a calyx, sometimes petaloid). Pedicel present, 3-4 mm long; glabrous. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, cream, yellow or red, 8-10 mm long, the lobes fused less than half their length, stellate hairs present, number of ribs absent. Stamens many, united and arising from a staminal tube around the style; filaments absent (anthers sessile); anthers 0.8-2 mm long. Staminodes present. Ovary hairs or scales present, stellate hairs present; styles several, free and separate, arising from the summit of the ovary, 2-3.2 mm long, with five style branches or lobes, hairy for most of length. 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 January, November or December. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Gibson Desert, Central Ranges, Yalgoo, Murchison, Great Victorian Desert, Coolgardie, Geraldton Sandplains or Avon Wheatbelt.