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croton, in botany

(Encyclopedia) crotoncrotonkrōˈtən [key], any of several species of Codiaeum that are widely cultivated as ornamentals and houseplants. The most popular species is C. variegatum, which has many…

cork, in botany

(Encyclopedia) cork, protective, waterproof outer covering of the stems and roots of woody plants. Cork is a specialized secondary tissue produced by the cork cambium of the plant (see meristem, bark…

gall, in botany

(Encyclopedia) gall, abnormal growth, or hypertrophy, of plant tissue produced by chemical or mechanical (e.g., the rubbing together of two branches) irritants or hormones. Chemical irritants are…

heath, in botany

(Encyclopedia) CE5 Rhododendron, Rhododendron maximum, a member of the heath family heath, in botany, common name for some members of the Ericaceae, a family of chiefly evergreen shrubs with…

hickory, in botany

(Encyclopedia) hickory, any plant of the genus Carya of the family Juglandaceae (walnut family); deciduous nut-bearing trees native to E North America and south to Central America except for a few…

hyacinth, in botany

(Encyclopedia) hyacinth, any plant of the genus Hyacinthus, bulbous herbs of the family Liliaceae (lily family) native to the Mediterranean region and South Africa. The common, or Dutch, hyacinth of…

iris, in botany

(Encyclopedia) CE5 Red iris, Iris fulva iris, common name for members of the genus Iris of the Iridaceae, a family of perennial herbs that includes the crocuses, freesias, and gladioli. The…

may, in botany

(Encyclopedia) may, name for several plants; in England, particularly the hawthorn. See also mayflower.