Australian Tropical Rainforest Plants - Online edition

Alangium polyosmoides (F.Muell.) Baill. subsp. polyosmoides

Click/tap on images to enlarge
Flowers. © Barry Jago
Leaves and fruit. © CSIRO
Scale bar 10mm. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO
10th leaf stage. © CSIRO

Wilde, W.J.J.O. de & Duyfjes, B.E.E. (2017) Blumea 62: 79.

Common name

Muskheart; Muskwood; Canary Muskheart; Brown Muskheart; Black Muskheart


Lenticels generally large and conspicuous and the bark generally exhibiting an untidy appearance. Pale granular stripes in the outer blaze.


Leaf blades about 6-12.9 x 2.5-5.5 cm. Domatia are foveoles and may occur on the lateral veins as well as the midrib. Younger leafy twigs clothed in pale brown erect hairs. Leaf blades often slightly hairy on the upper surface.


Flowers about 15-17 mm diam. Calyx and corolla pubescent on the outer surface. Sepals less than 0.5 mm long, densely hairy, fused into a cupule. Petals about 15-17 x 2 mm, hairy on the outer surface and shortly fused at the base. Anthers linear, about 7-8 mm long, filaments about 5-7 mm long, hairy. Style about 5-6 mm long.


Fruits spindle-shaped, 20 x 9-10 mm, puberulous. Seeds about 17 x 7 mm.


Cotyledons ovate or elliptic, about 25-35 x 15-22 mm, apex obtuse, base obtuse. First pair of leaves elliptic, upper and lower surfaces hairy, foveoles present along the midrib and major lateral veins close to the leaf blade margin. At the tenth leaf stage: leaves hairy on both the upper and lower surfaces, small foveoles present. Seed germination time 28 to 38 days.

Distribution and Ecology

Occurs in CYP, NEQ and CEQ, widespread in the area, and southwards to coastal central New South Wales. Altitudinal range from near sea level to about 1000 m. Grows in well developed lowland and upland rain forest. Also occurs in Malesia.

Rhytidandra polyosmoides (F.Muell.) F.Muell., Fragmenta Phytographiae Australiae 2: 176(1861). Pseudalangium polyosmoides F.Muell., Fragmenta Phytographiae Australiae 2: 84(1861), Type: Clarence River near Grafton, H. Beckler; holo: MEL?. Styrax villosum Blume, Bijdr. 13: 671(1825), Type: Java. Alangium villosum subsp. polyosmoides (F.Muell.) Bloemb., Bulletin du Jardin Botanique de Buitenzorg Series 3 16: 209 (1940).
RFK Code
Copyright © CSIRO 2020, all rights reserved.