sedge(n = noun.plant) Array - grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves and spikelets of inconspicuous flowers; Array
is a kind of bog plant, marsh plant, swamp plant
is a member of cyperaceae, family cyperaceae, sedge family
has particulars: cyperus alternifolius, umbrella plant, umbrella sedge, chufa, cyperus esculentus, earth almond, ground almond, rush nut, yellow nutgrass, cyperus longus, galangal, galingale, cyperus papyrus, egyptian paper reed, egyptian paper rush, paper plant, paper rush, papyrus, cyperus rotundus, nut grass, nut sedge, nutgrass, nutsedge, carex arenaria, sand reed, sand sedge, carex pseudocyperus, cypress sedge, cotton grass, cotton rush, hardstem bulrush, hardstemmed bulrush, scirpus acutus, scirpus cyperinus, wool grass, spike rush
Derived form adjective sedgy₁

1.  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. [1913 Webster]
" The name is sometimes given to any other plant of the order Cyperaceæ, which includes Carex, Cyperus, Scirpus, and many other genera of rushlike plants." [1913 Webster]

2.  A flock of herons. [1913 Webster]

sedge, n.
1 any grasslike plant of the genus Carex with triangular stems, usu. growing in wet areas.
2 an expanse of this plant.

Idiom:
sedge-warbler (or -wren) a small warbler, Acrocephalus schoenobaenus, that breeds in sedge.

Derivative:
sedgy adj.

Etymology:
OE secg f. Gmc

N  vegetable, vegetable kingdom, flora, verdure, plant, tree, shrub, bush, creeper, herb, herbage, grass, annual, perennial, biennial, triennial, exotic, timber, forest, wood, woodlands, timberland, hurst, frith, holt, weald, park, chase, greenwood, brake, grove, copse, coppice, bocage, tope, clump of trees, thicket, spinet, spinney, underwood, brushwood, scrub, boscage, bosk, ceja, chaparal, motte, arboretum, bush, jungle, prairie, heath, heather, fern, bracken, furze, gorse, whin, grass, turf, pasture, pasturage, turbary, sedge, rush, weed, fungus, mushroom, toadstool, lichen, moss, conferva, mold, growth, alfalfa, alfilaria, banyan, blow, blowth, floret, petiole, pin grass, timothy, yam, yew, zinnia, foliage, branch, bough, ramage, stem, tigella, spray, leaf, flower, blossom, bine, flowering plant, timber tree, fruit tree, pulse, legume, vegetable, vegetal, vegetive, vegitous, herbaceous, herbal, botanic, sylvan, silvan, arborary, arboreous, arborescent, arborical, woody, grassy, verdant, verdurous, floral, mossy, lignous, ligneous, wooden, leguminous, vosky, cespitose, turf-like, turfy, endogenous, exogenous, green-robed senators of mighty woods, this is the forest primeval.

broom sedge, cypress sedge, nut sedge, sand sedge, sedge bird, sedge family, sedge warbler, sedge wren, umbrella sedge