Australian Tropical Rainforest Plants - Online edition

Oplismenus mollis (Domin) Clifford & G.P.Evans ex B.K.Simon

Click/tap on images to enlarge
Flowers. © G. Sankowsky
Leaves. © G. Sankowsky
Herbarium specimen. © CSIRO

Domin, K. (1914) Bibliotheca Botanica 20(85): 329. Type: Sud-Queensland: Tambourine Mountains (DOMIN, III. 1910) .. N.S. Wales: Tweed River (GUILFOYLE).


Stems scandent to prostrate, culms hairy, rooting at the nodes, nodes hairy.


Leaf blades 3.5-6 x 0.4-1 cm, surface covered in scabrid hairs and silky hairs, lamina base asymmetrical; leaf sheath about 1-1.5 cm long, densely hairy. Ligule a ciliated or erosed membrane 0.5 mm high with longer hairs on the shoulders.


Inflorescence a terminal raceme or spike of flower clusters. Each cluster a short spike of flowers or spikelets containing 3-5 flowers. Each cluster contains female and hermaphrodite flowers. Inflorescence axis hairy with the rachis triquetrous and pubescent. Pedicels with long spreading hairs. Outer glume aristate, the hairs purplish and ca. 6 mm long, glume with a prominent keel with 2 veins on either side, awn 8-9 mm long and viscid. Inner glumes glabrous, with prominent keel, awn 0.5-1.5 mm long. Ovary obovoid, ca. 0.4 mm long. Stigmas plumose, white.


Caryopsis with very smooth and glossy testa.


Features not available.

Distribution and Ecology

Occurs in CYP, NEQ, CEQ and southwards to south-east Queensland. Altitudinal range from near sea level to 720 m. Grows in moist and shady places in rainforest, Eucalypt forest, vine forest and swamp forest. Occasionally in dune scrub. Also from New Guinea.


Oplismenus undulatifolius var. mollis Domin, Beitrage zur Flora und Pflanzengeographie Australiens. Bibliotheca Botanica 20(85): 329 (1914), Type: Sud-Queensland: Tambourine Mountains (DOMIN, III. 1910) .. N.S. Wales: Tweed River (GUILFOYLE).

RFK Code
Copyright © CSIRO 2020, all rights reserved.