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Key to Carex

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Show caption*© Scott Ward 1 Spike 1 per culm, all flowers attached to the main stem in a terminal spike  Key to Carex, Key A: Subkey in Carex

Show caption*© Gary P. Fleming Show caption*© Gary P. Fleming Show caption*© Keith Bradley 1 Spikes 2 or more per culm (some flowers in lateral spikes)

Show caption*© Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang ..2 All flowers staminate  Key to Carex, Key B: Subkey in Carex

Show caption*© Scott Ward ..2 At least some flowers pistillate.

Show caption*© Jay Horn Show caption*© Paul Marcum Show caption*© Scott Ward Show caption*© Scott Ward ....3 Stigmas 2; achenes flat or biconvex in cross-section (lenticular)  Key to Carex, Key C: Subkey in Carex

Show caption*© Paul Marcum Show caption*© Andrew Lane Gibson Show caption*© Gary P. Fleming ....3 Stigmas (2-) 3 (-4); achenes trigonous or terete in cross-section.

Show caption*© Paul Marcum Show caption*© Scott Ward ......4 Body of perigynium pubescent, scabrous, hispid, or papillose (if papillose, the papillae longer than wide)  Key to Carex, Key D: Subkey in Carex

......4 Body of perigynium glabrous or papillose (if papillose, the papillae shorter than wide).

........5 Bracts sheathless or with sheath < 4 mm long (rarely longer, and then the sheath shorter than the diameter of the stem)  Key to Carex, Key E: Subkey in Carex

........5 Bracts (at least the lower) with sheath > 4 mm long (and longer than the diameter of the stem)  Key to Carex, Key F: Subkey in Carex