sedge /ˈsɛʤ/
 簑衣草
 Sedge n.
 1. Bot. Any plant of the genus Carex, perennial, endogenous, innutritious herbs, often growing in dense tufts in marshy places. They have triangular jointless stems, a spiked inflorescence, and long grasslike leaves which are usually rough on the margins and midrib. There are several hundred species.
 Note: ☞ The name is sometimes given to any other plant of the order Cyperaceae, which includes Carex, Cyperus, Scirpus, and many other genera of rushlike plants.
 2. Zool. A flock of herons.
 Sedge hen Zool., the clapper rail. See under 5th Rail.
 Sedge warbler Zool., a small European singing bird (Acrocephalus phragmitis). It often builds its nest among reeds; -- called also sedge bird, sedge wren, night warbler, and Scotch nightingale.
 ◄ ►
 sedge
      n : grasslike or rushlike plant growing in wet places having
          solid stems, narrow grasslike leaves and spikelets of
          inconspicuous flowers