Australian Tropical Rainforest Plants - Online edition

Cyrtococcum oxyphyllum (Hochst. ex Steud.) Stapf

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Flowers. © G. Sankowsky
Inflorescence. © CSIRO
Leaves and flowers. © G. Sankowsky
Habit and leaves. © G. Sankowsky
Herbarium specimen. © DERM

Stapf, O. (1922) Icones Plantarum [Hooker's] Edn. Ser.5 1(4): t.3096.


Annual mat-forming with creeping, hollow culms rooting at the nodes, culms smooth and glabrous, upper part of culm more erect to 15-50 cm tall.


Leaf blades about 7-13 x 1-2 cm. Ligule obvious at the junction of the leaf blade and sheath, 1-1.5 mm long. Leaf sheath clothed in erect pale hairs, ciliate on one margin. midvein abaxially distinct, apex acuminate.


Flowers borne in contracted panicles about 4-12 × 1-2 cm, branches ascending, up to 3 cm long, pilose with long scattered hairs or hairs mostly confined to the axils; pedicels stout, short. Spikelets consist of a single male or bisexual flower, reddish brown at maturity, 1.6-2 mm, glabrous except for some hairs at the base . Glumes 3-veined, glabrous, 1.2-1.5 mm long, acute. Lemma about 1.5 mm long, lower lemma obtuse or subtruncate; upper lemma yellowish or yellowish brown, smooth and shining.


Individual fruits pale brown, laterally compressed, ca.1.5 x 1 mm. Endosperm white, embryo very small.


Features not available.

Distribution and Ecology

Occurs in CYP and NEQ. Altitudinal range from near sea level to 740 m. Grows in rainforest, sclerophyll forest, vineforest and swamp forest. Also from Bhutan, India, Malaysia, Myanmar, Philippines, Sri Lanka, Vietnam and New Guinea.

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