Flora of North America species comparison

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Cyperus subg. Pycreus
Culms

and leaves with Kranz (chlorocyperoid) anatomy.
Inflorescences

spikes;

rachilla persistent, wingless or nearly so.
Spikelets

borne in loosely spicate to ± digitate clusters;

floral scales deciduous, 2-keeled or folded.
Flowers

stamens (1–)2–3;

pistils 2;

stigmas 2.
Achenes

biconvex or ± cylindric, laterally compressed, edge borne toward rachilla.

Cyperus subg. Pycreus
Distribution
Worldwide
Discussion

Species ca. 100 (11 in the flora).

Laterally compressed, biconvex achenes, a feature not occurring elsewhere in the family, distinguish Cyperus subg. Pycreus. The taxon has been treated as a genus in Flora Mesoamericana (C. D. Adams 1994), an idea that may have merit.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 23.
Parent taxa Cyperaceae > Cyperus
Subordinate taxa
Synonyms subg. Pycreus, C. section Pycreus
Name authority (Palisot de Beauvois) J. Carey: Carices North. U. S., 517. (1847)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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