Myr·tle n.  Bot. A species of the genus Myrtus, especially Myrtus communis. The common myrtle has a shrubby, upright stem, eight or ten feet high. Its branches form a close, full head, thickly covered with ovate or lanceolate evergreen leaves.  It has solitary axillary white or rosy flowers, followed by black several-seeded berries.  The ancients considered it sacred to Venus.  The flowers, leaves, and berries are used variously in perfumery and as a condiment, and the beautifully mottled wood is used in turning.
 Note: ☞ The name is also popularly but wrongly applied in America to two creeping plants, the blue-flowered periwinkle and the yellow-flowered moneywort.  In the West Indies several myrtaceous shrubs are called myrtle.
 Bog myrtle, the sweet gale.
 Crape myrtle. See under Crape.
 Myrtle warbler Zool., a North American wood warbler (Dendroica coronata); -- called also myrtle bird, yellow-rumped warbler, and yellow-crowned warbler.
 Myrtle wax. Bot. See Bayberry tallow, under Bayberry.
 Sand myrtle, a low, branching evergreen shrub (Leiophyllum buxifolium), growing in New Jersey and southward.
 Wax myrtle (Myrica cerifera). See Bayberry.

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 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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 bog myrtle
      n : perennial plant of Europe and America having racemes of
          white or purplish flowers and intensely bitter trifoliate
          leaves; often rooting at water margin and spreading
          across the surface [syn: water shamrock, buckbean, bogbean,
           marsh trefoil, Menyanthes trifoliata]