Australian Tropical Rainforest Plants - Online edition

Xanthostemon xerophilus Peter G.Wilson

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Leaves and Flowers. © CSIRO
Flowers [not vouchered]. © G. Sankowsky
Leaves and flowers [not vouchered]. © G. Sankowsky
Scale bar 10mm. © CSIRO

Wilson, Peter G. (1990) Telopea 3(4): 465. Type: Cook District: ca 45 miles S of Cape York, 27 June 1968, 19 S, 142 25 E, Pedley 2737; holo:NSW; iso: BRI.

Common name



Exudate, if present, meagre, yellowish and confined to the inner blaze. Fine, pale brown stripes usually visible in the inner blaze.


Leaf blades about 4.5-11 x 2.5-5.5 cm, petioles about 0.5-1.8 cm long. Oil dots pink, reddish or pale brown, no more than one per reticulation. 'Stipules' filiform, very small, five in a group. Freshly cut twigs or petioles may produce a small amount of yellowish exudate. Underside of the leaf blade much paler than the upper surface.


Calyx tube (hypanthium) puberulous, about 2.5 x 6 mm. Calyx lobes broadly triangular, puberulous, about 1.5 mm long. Petals pubescent, ovate, apex rounded, about 5 mm long, oil dots visible with a lens. Stamens about 30, filaments yellow, glabrous, about 20 mm long, anthers about 0.7 mm long. Ovary gland-dotted, projecting above the base of the disk but not exceeding the rim of the calyx tube (hypanthium). Style about 22 mm long. Stigma small and terminal.


Fruits globular, about 8-10 x 9-10 mm, calyx persistent at the base. Seeds about 4-5 mm long.


Features not available.

Distribution and Ecology

Occurs in CYP, known only from collections made on the most northerly parts of Cape York Peninsula. Altitudinal range quite small, from near sea level to 100 m. Frequently grows in open eucalypt forest but also found on the margins of monsoon forest.

Natural History & Notes

Not known in cultivation at this point but has potential for parks, gardens and street plantings. A small tree with bunches of yellow flowers.

RFK Code
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