Australian Tropical Rainforest Plants - Online edition

Psydrax johnsonii S.T.Reynolds & R.J.F.Hend.

Shrub (woody or herbaceous, 1-6 m tall)
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Herbarium sheet. CC-BY: ATH.
Herbarium sheet: flowers. CC-BY: ATH.

Reynolds, S.T. & Henderson, R.J.F. (2004), Vanguerieae A.Rich. ex Dum. (Rubiaceae) in Australia, 3. Psydrax Gaertn. Austrobaileya 6(4): 876-878. Type: Queensland. Leichhardt District: Duaringa Shire, Berrigurra Station, about 6 km N of Tolmies, 23 32'S, 148 44'E, 9 Dec 1981, E.R. Anderson 2829 (holo: BRI).


Small tree 3-8 m high; bark grey-brown with white, dark grey or blackish coloured mottles, rough at base, smooth toward upper branches. Young stems hairy, becoming hairless.

Leaves simple, opposite. Stipules interpetiolar, ovate, 3-5 mm long, orange finger like glands ± present between stipule and stem, broad at base and attenuate at apex, folded or keeled. Petiole 3-5 mm long. Leaf blade elliptic to oblong-elliptic or oblanceolate, 2-5 cm long, 0.7-2 cm wide, juvenile leaves more or less circular and 1-1.5 cm long; base usually cuneate and attenuate into petiole, or rounded, margins entire, apex obtuse. Lateral veins 3-5 pairs. Domatia usually prominent, 1-3 each side of midrib, rarely absent. Both surfaces hairless or sparsely hairy.

Inflorescences axillary, dichasial cymes, 22-25 flowered. Flowers bisexual, actinomorphic, 5-merous (sometimes 4-merous), white. Pedicels 1-5 (-6.5) mm long, hairy when young. Calyx tubular and 1-1.5 mm long, lobes 4-5, minutely hairy when young, green. Corolla 5-6 mm long, tubular with spreading to recurved lobes, tube 1.5-1.7 mm long, lobes 3.5-4 mm long, glabrous but with erect hairs in throat, white. Stamens 4 or 5, exserted from corolla tube; style 7-8 mm long, exserted, stigma bilobed, ovary inferior.


Fruit more or less fleshy, a drupe, broad depressed ellipsoid to ± globose, 4-6 mm long, 4.5-6.5 mm wide, black, crowned by persistent calyx; stones 1 or 2, slightly rugose, each 1-seeded.


Features not available.

Distribution and Ecology

Occurs in CEQ, from near Townsville south to Murgon (W of Gympie), and west to Carnarvon N.P. Found in vine thickets and common in adjacent Brigalow scrub.

Natural History & Notes

This profile information and associated coding has been adapted from Cooper & Cooper (2004), Harden et al. (2014) and Reynolds & Henderson (2004).

Canthium sp. Berrigurra Station (E.R.Anderson 2829)
RFK Code
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