Biology:Dysoxylum rufum

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Short description: Species of tree

Dysoxylum rufum
Dysoxylum rufum trunk & leaves.jpg
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Meliaceae
Genus: Dysoxylum
D. rufum
Binomial name
Dysoxylum rufum
(A.Rich.) Benth.[1]
  • Alliaria rufa (A.Rich.) Kuntze
  • Didymocheton rufum (A.Rich.) Harms
  • Dysoxylum gaudichudianum (A.Juss.) Miq.
  • Dysoxylum rufum var. glabrescens Benth.
  • Hartighsea rufa A.Rich. (basionym)

Dysoxylum rufum is a rainforest tree in the family Meliaceae, found in eastern Australia . It occurs on a variety of different soils and rainforest types. From as far south as Bulahdelah, New South Wales to the McIlwraith Range in far north eastern Australia.[4][5] The specific epithet rufum refers to the rusty red of the leaf, fruit and flower hairs of this species.[citation needed]

Common names

Dysoxylum rufum is known variously by the common names Australian mahogany, bastard pencil cedar, false rosewood, hairy rosewood, rusty mahogany, red bean, red heart, and rusty bean.[5]


Usually a small to medium-sized tree.[3] Though it reaches 40 metres tall with a stem diameter of 90 cm at Murray Scrub.


Leaflets are nearly opposite on the stem, without serrations. Asymmetrical at the leaf base. Leaflets 5 to 17 cm long. Lanceolate to broad lanceolate in shape with a fine point at the leaf tip. Unusually, the leaflets are a dull green above the leaf, and a brighter green below. Hairy under the leaf. Leaflet stalks 2 to 3 mm long, but much longer for the terminal leaflet, where it is up to 25 mm long. The compound leaf contains around 19 leaflets. With a stalk 4 to 10 cm long.

Flowers, fruit and regeneration

Pleasantly scented white flowers form on panicles from December to February. The panicles form from the leaf axils. And when mature, the flower scent becomes less pleasant. The flower calyx is hairy.

The fruit is a round yellowish capsule, around 2 cm in diameter, mostly five-valved. Also covered with hairs which can irritate the skin. Seeds inside the capsule are cream, irregular in shape, and about 5 mm in diameter. Fruit ripens from April to December. Regeneration from fresh seed is relatively swift and reliable, taking as little as three weeks. After eight weeks, germination should be complete with good results.


Onion scented wood. Mostly white with a red heartwood core which resembles the related Red Bean. Timber is vulnerable to attack from the lyctus borer.

The hairy rosewood is a large tree in the tall rainforest at Murray Scrub, New South Wales


  1. "Dysoxylum rufum". Royal Botanic Gardens, Kew. 
  2. "Hartighsea rufa". Australian Government. 
  3. 3.0 3.1 Taylor, J.; Harden, G. J. (1991). "Dysoxylum rufum – New South Wales Flora Online". PlantNET - The Plant Information Network System. Sydney, Australia: The Royal Botanic Gardens and Domain Trust. 
  4. 4.0 4.1 Floyd, A. G. (2008). Rainforest Trees of Mainland South-eastern Australia (2nd, Revised ed.). Lismore, New South Wales: Terania Rainforest Publishing. p. 220. ISBN 978-0-958943-67-3. Retrieved 2010-06-28. 
  5. 5.0 5.1 5.2 "Dysoxylum rufum". Centre for Australian National Biodiversity Research (CANBR), Australian Government. 

Wikidata ☰ Q5319533 entry