Australian Tropical Rainforest Plants - Online edition

Psychotria sp. Pinnacle Rock (B.Gray 6555)

Herb (herbaceous or woody, under 1 m tall)
Shrub (woody or herbaceous, 1-6 m tall)
Click/tap on images to enlarge
Scale bar 10mm. © CSIRO

Provisional HISPID phrase name.


Flowers and fruits as a shrub about 1 m tall and sometimes when smaller.


Stipules large, triangular, about 15-17 x 5-6 mm, apex bifid. Lateral veins distinctly raised on the upper surface of the leaf blade and forming loops just inside the blade margin. A fine intramarginal vein present close to the blade margin.


Inflorescence densely clothed in erect, pale hairs. Flowers about 5 mm diam. Calyx lobes about 2-2.2 mm long, clothed in stiff upright hairs. Corolla tube about 3 mm long, lobes about 2 mm long. Throat of the corolla tube (the inner surface) clothed in white hairs around the same level as the attachment of the stamens. Ovary densely covered in pale, erect hairs. Base of the style surrounded by a white globose disk. Stigma bifid.


Fruits about 6-7 x 5-6 mm. Seeds (endocarps) about 5 mm long, longitudinally ribbed (3-4 ribs).


Features not available.

Distribution and Ecology

Endemic to NEQ. Altitudinal range from near sea level to 700 m. Grows as an understory plant in lowland and upland rain forest.

RFK Code
Copyright © CSIRO 2020, all rights reserved.