Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

This key has subkey(s).

Click images to enlarge and show more photo credit.

Key to Carex, Key A: Subkey in Carex

Cyperaceae

Carex

Copy permalink to share | Check for keys that lead to this key

(c) Bradley, Keith
1 Leaf blades 20-60 mm wide, without a midrib (with 40-100 parallel nerves all of equal prominence), leathery, the apex obtuse; leaf margin scarious, minutely crisped-ruffled (feeling scaberulous to the touch)
1 Leaf blades 0.5-25 (-52) mm wide, with a midrib, herbaceous, the apex acute; leaf margin various (smooth or scabrous, but not as described below).
(c) Cressler, Alan M.
  2 Spike entirely staminate.
    3 Culms yellow to brown or black, without red or purple coloration.
(c) Ward, Scott G
(c) Loon, Chloe and Trevor Van - CC-BY
  2 Spike pistillate or with both pistillate and staminate flowers.
          6 Perigynia minutely but strongly and regularly serrulate on apical portion and beak, ± flattened; plants cespitose
(c) Ward, Scott G
               8 Spikes androgynous or entirely pistillate; beak of perigynium with apex entire, emarginate, or with teeth < 0.2 mm long.
                   10 Perigynium beak < 2 mm long, or if more, then tapering to the perigynium body and shorter than the body.
                     11 Perigynia < 4× as long as wide; the pistillate scales persistent, thus the perigynia bases usually somewhat obscured.