Australian Tropical Rainforest Plants - Online edition

Pternandra coerulescens Jack

Shrub (woody or herbaceous, 1-6 m tall)
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Jack, W. (1822) Malayan Miscellany 2(7) : 61. Type: Native of Pulo Pinang.

Common name

Cursed Shade


A small tree not exceeding 30 cm dbh.


Stipules absent but scars resembling stipular scars present on the twigs between the petioles. Leaf blades 3-nerved, about 7-10 x 3.5-5 cm, glabrous. The minor lateral veins form an intramarginal vein very close to the margin of the leaf blade. Young leaves purplish in colour. Petioles narrowly grooved on the upper surface. Leaf blades rather brittle, cracking transversely when folded.


Inflorescences shorter than the leaves. Calyx covered with a tuberculate pattern of scales, calyx lobes small. Petals about 2-6 x 2-4 mm. Staminal filaments flattened, about 2-4 mm long. Style slender, straight, about 4-7 mm long.


Infructescences shorter than the leaves. Fruits globular, about 10 x 10 mm. Calyx lobes and style persistent at the apex. Seeds very numerous, about 1 x 0.5 mm.


Features not available.

Distribution and Ecology

Occurs in NT and CYP. Altitudinal range from near sea level to 100 m. Grows in rain forest and gallery forest near permanent water in swampy or waterlogged soil conditions. Also occurs in SE Asia and Malesia.

Ewyckia cyanea Bl., Flora 14: 525(1831), Type: Moluccas, Zippel s.n.; holo: L. Fide Maxwell (1981) Gard. Bull. Singapore 34: 35. Pternandra cyanea (Blume) Triana, Transactions of the Linnean Society, London 28 : 153(1871).
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