Pycreus macrostachyos is an annual sedge, erect, more or less tufted, 30 to 75 cm high. The stems are relatively robust, trigonal, leafy at the base.

Pycreus macrostachyos (Lam.) J. Reynal Zarma name: jirajiri, giragiri. An annual sedge of dump places. Uses: Insense (ambiguous due to poor identification).

Biology. Annual sedge that reproducing from seeds. Ecology. Lowland hydromorphic areas, field margins and drains; widespread. Origin.

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Cyperus esculentus can be found wild, as a weed, or as a crop. It is an invasive species outside its native range, and is readily transported accidentally to ...

Cyperus polystachyos var. macrostachyus Boeckeler. First published in Linnaea 35: 479 (1868). This name is a synonym of Cyperus polystachyos var. polystachyos.

Pycreus polystachyos is a herbaceous vivavious sedge, tufted, with short and horizontal rhizomes. The stem is of triangular section, 25 to 80 cm high.

Cyperus polystachyos is a wide-ranging perennial graminoid with a pantropical and warm temperate distribution, north in North America to Maine, ...

Pycreus polystachyos polystachyos ; synonym, Cyperus polystachyos var. fascicularis (Poir.) Kuntze ; synonym, Cyperus polystachyos var. glaucescens Boeckeler.

Typical var. diffusus and var. macrostachyus look like different species, but they are connected by numerous intermediates precluding specific separation.