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Australopyrum Uncinatum


Plants perennial, cespitose.

Culms 30-80 cm tall. erect; basal branching intravaginal; nodes yellowish to brownish; internodes glabrous; top internode (peduncle) to 25 cm long, becming more less appressed pubescent distally.

Leaves: sheaths open to the base, pubescent to pilose, the hairs patent to reflexed, lower sheaths becoming fibrous with age; ligule 0.5-1 mm, truncate, erose to puberulous; blade to 25 cm long, to 2 mm wide, both surfaces pilose, the upper surface more densely so.

Inflorescence erect, to 3 cm long, with 3-5 spikelets; rachis pubescent, extending 5-6 mm beyond the base of the terminal spikelets; pedicels about 1 mm long.

Spikelets appressed in anthesis, reflexed at maturity, 16-18 mm long, with 4-5 florets; rachilla puberulent, internodes 0.5-1 mm long..

Glumes subulate to uncinate, lower glume 7-9 mm long, 3-veined, upper glume 7.7-8 mm long, 4-5-veined. Lemmas 13-16 mm long, stiff, 10-14-veined, tapering to an awn which is inwardly reflexed, forming an uncinate hook. Palea 7.5-10 mm long, keels setose. Lodicules 2, about 1 mm long. Anthers 2-2.5 mm long.

australopyrum uncinatum


Subalpine grassland, about 3000 m elevation.


Papua-New Guinea: Northern Districit, Mt. Kenive. Known only from the type collection.

Chromosome number

2n = 14

Haplomes present

Assumed to be W


Veldkamp, J.F. and H.J. van Scheindelen. 1989. Australopyrum, Brachypodium, and Elymus (Gramineae) in Malesia. Blumea 34:61-76.