Angiosperms (Flowering Plants) • Earth.com

Racemed Beaksedge

(Rhynchospora racemosa)

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Description

Rhynchospora (beak-rush or beak-sedge) is a genus of about 400 species of sedges with a cosmopolitan distribution.The genus includes both annual and perennial species, mostly with erect 3-sided stems and 3-ranked leaves. The achenes bear a beak-like tubercule (hence the name “beak-rush”, although the plants are sedges, not rushes) and are sometimes subtended by bristles. Many of the species are similar in vegetative appearance, and mature fruits are needed to make a positive identification. The infloresences (spikelets) are sometimes subtended by bracts which can be leaf-like or showy.

Taxonomic tree:

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