Tree to 20m tall. Leaves alternating up the stems, 5-15cm long, hairless, 3-lobed. Flowers creamy white speckled dark red inside, bell-shaped, with 5 lobes, in dense clusters on long stalks which arise from the bases of the leaves. The hairs surrounding the seeds irritate the skin. Native to NSW well east of the area covered by this key. Family Sterculiaceae in SA.
Description and photo (page 493) (as Brachychiton populneum) in G.M. Cunningham, WE Mulham, PL Milthorpe and J H Leigh (1981 and later printings) Plants of Western New South Wales. Note that this description is of both subspecies.