Australian Tropical Rainforest Plants - Online edition

Cyperus dietrichiae Boeckeler

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Herbarium specimen. © CSIRO

Boeckeler, J.O. (1875) Flora oder Allgemeine Botanischer Zeitung 58: 122. Type: Queensl. Port Mackay (Am. Dietrich).


Tufted perennial. Rhizome short, lacking stolons. Stems rigid, triquetrous and smooth, 30-80 cm tall.


Leaves flat, 2-4 mm wide; lower sheaths pale and membranous.


Inflorescence simple or compound, loose with 3-7 involucral bracts, lower as long as or overtopping the inflorescence. Primary rays 5-10, very slender, longer ones up to 20 cm. Spikes broadly ovoid with 10-25 spikelets. Spikelets filiform with 5-8 flowers, lower ones at right angles to the rachis. Rachilla broadly winged. Glumes not touching, with a green keel, 4-5 veins on either side of the keel.


Nut trigonous, greenish yellow, oblong linear, acuminate, about 2 x 0.3 mm, with a smooth testa, ¾ the length of the glume.


Features not available.

Distribution and Ecology

Occurs in NEQ, CEQ and south to north eastern NSW. Altitudinal range from near sea level to 850 m. Grows in rainforest, microphyll vine forest, Eucalypt forest, various types of woodland, swampy areas and in dune scrub. Also occurs in Malesia.

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