Australian Tropical Rainforest Plants - Online edition
Brachychiton tridentatus Guymer
Guymer, G.P. (1989) Australian Systematic Botany 1(3): 288. Type: "Near Sofala Falls, Drysdale R. National Park (14°40′S, 127°0′E), Western Australia, 12 Aug. 1975, A.S. George 13772 (holotypus PERTH; isotypus NE)."
Shrubs or small tree, 4-6 m tall, deciduous. Bark dark grey, rough, fissured, tessellated. Young branchlets stellate-puberulent. Bark hard and difficult to cut. Blaze marked by horizontal speckles.
Leaf blades dull and glabrous above, pale grey stellate-velutinous below, very shallowly 3(-5)-lobed, broadly ovate to ovate, 9.5-13 cm x 11-16 cm; petioles (4.5)-6-12 cm long.
Inflorscence 1-12-flowered; flowers pink, red, orange-red; 25-35mm long x 25-30 mm diamter; perianth shortly 5-lobed; nectaries 4, 3-lobed. Male flowers with androgynophore 12-18 mm long; stamens 24-25. Female flowers with androgynophore 3-5 mm long, 24-25 staminodes.
Fruits pale greenish-yellow, stellate-velutinous, about 6-7 x 3-3.5 cm. Seeds about 8-9.5 x 5.5-6.5 mm.
Features not available.
Endemic to WA. Altitudinal range from near sea level to 450 m. Grows in woodlands but also found in and on the margins of monsoon forest.
Description derived from Australian Systematic Botany 1(3): 288.