Angiosperms (Flowering Plants) • Earth.com

Annual greenhead sedge

(Cyperus tenuifolius)

galery
en

Description

They are�annual�or�perennial�plants, mostly�aquatic�and growing in still or slow-moving water up to 0.5�m deep. The species vary greatly in size, with small species only 5�cm tall, while others can reach 5�m in height. Common names include�papyrus sedges, flatsedges, nutsedges, umbrella-sedges�and�galingales. The stems are circular in cross-section in some, triangular in others, usually leafless for most of their length, with the slender�grass-like leaves at the base of the plant, and in a�whorl�at the apex of the flowering stems. The�flowers�are greenish and�wind-pollinated; they are produced in clusters among the apical leaves. The�seed�is a small�nutlet.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Liliopsida
Order:Poales
Family:Cyperaceae
Genus:Cyperus
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