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rhododendron

(Encyclopedia)rhododendron rōˌdədĕnˈdrən [key] [Gr.,=rose tree], any plant of the genus Rhododendron, shrubs of the family Ericaceae (heath family) found chiefly in mountainous areas of the arctic and north t...

rocket, in botany

(Encyclopedia)rocket, in botany, popular name for several plants of the family Cruciferae (or Brassicaceae; mustard family). The dame's, or damask, violet, damewort, or sweet rocket is Hesperis matronalis, a hardy,...

dogbane

(Encyclopedia)dogbane, common name for some members of the Apocynaceae, a family of herbs, shrubs, and trees found in most parts of the world but especially in the tropics, where they are often climbing forms. Many...

evening primrose

(Encyclopedia)CE5 Evening primrose, Oenothera biennis evening primrose, common name for the Onagraceae, a family of plants of worldwide distribution, most species of which grow as herbs in the temperate New Wor...

Psilotophyta

(Encyclopedia)Psilotophyta sīlōˌtŏfˈətə [key], division of vascular plants consisting of only two genera, Psilotum and Tmesipteris, with very few species. These plants are characterized by the lack of roots,...

quince

(Encyclopedia)quince, shrub or small tree of the Asian genera Chaenomeles and Cydonia of the family Rosaceae (rose family). The common quince (Cydonia oblonga) is a spineless tree with edible fruits cultivated from...

staff tree

(Encyclopedia)staff tree, common name for some temperate members of the Celastraceae, a family of trees and shrubs (many of them climbing forms), widely distributed except in polar regions. These plants typically b...

nettle

(Encyclopedia)nettle, common name for the Urticaceae, a family of fibrous herbs, small shrubs, and trees found chiefly in the tropics and subtropics. Several genera of nettles are covered with small stinging hairs ...

lettuce

(Encyclopedia)lettuce, annual garden plant (Lactuca sativa and varieties) of the family Asteraceae (aster family), probably native to the East Indies or Asia Minor, possibly as a derivative of the widespread weed c...

lilac

(Encyclopedia)lilac, any plant of the genus Syringa, deciduous Old World shrubs or small trees of the family Oleaceae (olive family), widely cultivated as ornamentals. Since colonial days, the common lilac has been...