Rush n.
 1. Bot. A name given to many aquatic or marsh-growing endogenous plants with soft, slender stems, as the species of Juncus and Scirpus.
 Note: ☞ Some species are used in bottoming chairs and plaiting mats, and the pith is used in some places for wicks to lamps and rushlights.
 2. The merest trifle; a straw.
    John Bull's friendship is not worth a rush.   --Arbuthnot.
 Bog rush. See under Bog.
 Club rush, any rush of the genus Scirpus.
 Flowering rush. See under Flowering.
 Nut rush (a) Any plant of the genus Scleria, rushlike plants with hard nutlike fruits. (b) A name for several species of Cyperus having tuberous roots.
 Rush broom, an Australian leguminous plant (Viminaria denudata), having long, slender branches. Also, the Spanish broom. See under Spanish.
 Rush candle, See under Candle.
 Rush grass, any grass of the genus Vilfa, grasses with wiry stems and one-flowered spikelets.
 Rush toad Zool., the natterjack.
 Scouring rush. Bot. Same as Dutch rush, under Dutch.
 Spike rush, any rushlike plant of the genus Eleocharis, in which the flowers grow in dense spikes.
 Sweet rush, a sweet-scented grass of Arabia, etc. (Andropogon schoenanthus), used in Oriental medical practice.
 Wood rush, any plant of the genus Luzula, which differs in some technical characters from Juncus.


 bog n.
 1. A quagmire filled with decayed moss and other vegetable matter; wet spongy ground where a heavy body is apt to sink; a marsh; a morass.
 Appalled with thoughts of bog, or caverned pit,
 Of treacherous earth, subsiding where they tread.   --R. Jago.
 2. A little elevated spot or clump of earth, roots, and grass, in a marsh or swamp. [Local, U. S.]
 Bog bean. See Buck bean.
 Bog bumper (bump, to make a loud noise), Bog blitter, Bog bluiter, Bog jumper, the bittern. [Prov.]
 Bog butter, a hydrocarbon of butterlike consistence found in the peat bogs of Ireland.
 Bog earth Min., a soil composed for the most part of silex and partially decomposed vegetable fiber. --P. Cyc.
 Bog moss. Bot. Same as Sphagnum.
 Bog myrtle Bot., the sweet gale.
 Bog ore. Min. (a) An ore of iron found in boggy or swampy land; a variety of brown iron ore, or limonite. (b) Bog manganese, the hydrated peroxide of manganese.
 Bog rush Bot., any rush growing in bogs; saw grass.
 Bog spavin. See under Spavin.

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