Australian Tropical Rainforest Plants - Online edition

Asteromyrtus brassii (Byrnes) Craven

Shrub (woody or herbaceous, 1-6 m tall)
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Leaves, flowers and fruit. © CSIRO
Scale bar 10mm. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO
10th leaf stage. © CSIRO

Craven, L.A. (1988) Australian Systematic Botany : 379.


Grows into a small tree seldom exceeding 30 cm dbh. Dead bark layered.


Leaf blades about 50-60 x 9-11 mm, petioles about 2-4 mm long. Venation longitudinal and parallel with about 5 or 6 veins more prominent than the rest. Intramarginal vein difficult to discern.


Inflorescence globose, sessile. Calyx tube (hypanthium) about 8.5 x 5 mm, slightly hairy on the outer surface, lobes about 4.5 mm long. Petals about 5 x 3 mm. Stamens aggregated in five groups by fusion of the filaments, each group consisting of about 30-35 stamens. Free portion of the filament about 4 mm long, anthers globose, less than 0.5 mm diam. Style red, about 9 mm long.


Infructescence globose, about 18-20 mm diam. Individual capsules about 11 mm diam. Seeds about 4 x 1 mm, winged at the apex and along each side. Embryo about 3 mm long.


Cotyledons elliptic, about 7 x 4 mm, midrib visible but no other veins apparent. Oil dots visible near the margin. At the tenth leaf stage: leaf blade elliptic, ovate to slightly rhomboid, about 45-60 x 10-12 mm, apex apiculate, base cuneate to attenuate, oil dots numerous. Venation longitudinal with 3 veins usually visible on each side of the midrib. Petiole very short or absent. Seed germination time 10 to 19 days.

Distribution and Ecology

Occurs in CYP. Altitudinal range from 30-500 m. Usually grows in heath, woodland or open forest, but occasionally found in or on the margins of rain forest on a variety of sites. Also occurs in New Guinea.

Natural History & Notes

A small tree being introduced into horticulture. The flowers are red and attract birds.

Melaleuca brassii Byrnes, Austrobaileya 2: 74(1984), Type: Papua New Guinea, Oriomo River, Wuroi, Brass 5690; holo: BRI.
RFK Code
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