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loosestrife

(Encyclopedia) loosestrife, common name for the Lythraceae, a widely distributed family of plants most abundant as woody shrubs in the American tropics but including also herbaceous species (chiefly…

cyanobacteria

(Encyclopedia) cyanobacteriacyanobacteriasīˌənōbăktĭrˈēə, sī-ănˌō– [key] or blue-green algae, photosynthetic bacteria that contain chlorophyll. For many years they were classified in the plant…

currant

(Encyclopedia) currant, northern shrub of the family Saxifragaceae (saxifrage family), of the same genus (Ribes) as the gooseberry bush. The tart berries of the currant may be black, white, or red;…

groundsel

(Encyclopedia) groundselgroundselgroundˈsəl [key], any plant of the very large genus Senecio, widely distributed herbs and (in the tropics) shrubs or trees of the family Asteraceae (aster family).…

waxbill

(Encyclopedia) waxbill, common name for small, brightly colored weaver finches of the Estrildini tribe of the family Estrildidae. Most are African with the exception of two S Asian species of…

dogtooth violet

(Encyclopedia) dogtooth violet, originally a name for the Old World plant Erythronium denscanis, now applied also to several North American species of the same genus of the family Liliaceae (lily…

cavefish

(Encyclopedia) cavefish, common name for blind, cave-dwelling fishes of the family Amblyopsidae. The Amblyopsidae are mostly whitish fish, up to 5 in. (13 cm) long. With the exception of a single…

classification

(Encyclopedia) CE5 classification, in biology, the systematic categorization of organisms into a coherent scheme. The original purpose of biological classification, or systematics, was to organize…

planarian

(Encyclopedia) planarian, common name for several genera of the free-living (turbellarian) flatworms belonging to the order Tricladida, a name that derives from their characteristic three-branched…

firefly

(Encyclopedia) firefly or lightning bug, small, luminescent, carnivorous beetle of the family Lampyridae. Fireflies are well represented in temperate regions, although the majority of species are…