Australian Tropical Rainforest Plants - Online edition

Brachychiton tridentatus Guymer

Shrub (woody or herbaceous, 1-6 m tall)
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Flower. © R.L. Barrett
Fruit and seeds. © R.L. Barrett
Fruit. © R.L. Barrett
Leaves. © R.L. Barrett
Upper and under sides of leaves. © R.L. Barrett
Young leaves. © R.L. Barrett
Habit. © R.L. Barrett
Bark. © R.L. Barrett
Scale bar 10mm. © CSIRO

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, deciduousBark 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.

Distribution and Ecology

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.

Natural History & Notes

Description derived from Australian Systematic Botany 1(3): 288.

RFK Code


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