Australian Tropical Rainforest Plants - Online edition

Denhamia pittosporoides subsp. angustifolia Jessup

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

Jessup, L.W. (1984) Flora of Australia 22: 222. Type: No Name Hill, Valley of Lagoons, Qld, B. Gray 1424; holo: BRI; iso: QRS.

Common name

Orange Boxwood; Veiny Denhamia


Usually grows as a small tree but also flowers and fruits as a shrub.


Leaf blades about 3.5-8 x 0.6-1.1 cm, petioles about 0.4-1.1 cm long. Stipules about 0.3 mm long, caducous. Leaf blade margins irregularly toothed. Lateral veins branching well inside the blade margin.


Features not available.


Fruits hard and woody, a capsule opening by four or five valves. Fruits globose before dehiscence, about 1-1.6 x 1-1.8 cm. Seeds about 2-5 per fruit, each seed elliptic, about 7 mm long. Aril fleshy, completely enclosing the seed. Embryo about 7 mm long, radicle about 1 mm long.


Cotyledons elliptic, 3-veined at the base, about 15-16 x 9-10 mm, +/- sessile but the base very attenuate. First pair of leaves larger than the cotyledons, stipules about 1 mm long. Leaf blade margins irregularly toothed. At the tenth leaf stage: stipules small, about 0.5 mm long. Cataphylls often present among the leaves. Leaf blade narrowly elliptic to oblong with a few teeth on the margin towards the apex. Stems somewhat angular, brown when older, usually with prominent lenticels and longitudinal lines. Seed germination time 31 to 36 days.

Distribution and Ecology

Endemic to Queensland, occurs in NEQ and CEQ. Altitudinal range in NEQ from 500-600 m. Grows in vine thickets and monsoon forest.

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