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Cyperus virens Michaux. Phen: May-Nov. Hab: Marshes and ditches. Dist: E. NC south to c. peninsular FL, west to TX; Mexico to Argentina. Also as a chrome ore waif in VA.

ID notes:Easily identified in the field by its triquetrous culms with abundant retrorse prickles on the angles (sharp enough to slice open a finger moved up the stem, a hazard when collecting voucher specimens); other species in sect. Luzuloidei are mostly bluntly and obscurely trigonous.

Origin/Endemic status: Native

Synonymy: = Ar, C, ETx1, FNA23, K3, K4, Mex, RAB, Tx, WH3, Carter (1990); < Cyperus virens Michx. – F, GW1, K1, S, Larridon et al. (2014), Muasya et al. (2009), Tucker (1987)

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image of plant© Keith Bradley | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Radford, Ahles and Bell | Original Image ⭷

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