Flora of North America species comparison

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Cyperus subg. Cyperus
Culms

and leaves with Kranz (chlorocyperoid) anatomy.
Inflorescences

spikes loose to dense, ovoid to cylindric;

rachilla falling early or persistent, wingless or winged.
Spikelets

if rachilla articulate at base, spikelets borne in spikes on conspicuous rachis, falling as achenes mature, if rachilla continuous at base, persistent after achenes mature;

floral scales persistent or deciduous;

stamens 3 (1, less frequently 2 in C. squarrosus and C. granitophilus).
Flowers

stigmas 3.
Achenes

trigonous, sometimes dorsiventrally flattened.

Cyperus subg. Cyperus
Distribution
Temperate and tropical regions
Discussion

Species ca. 350–400 (59 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 23, p. 164.
Parent taxa Cyperaceae > Cyperus
Subordinate taxa
Synonyms subg. Chlorocyperus, C. subg. Mariscus, subg. Papyrus
Name authority unknown
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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