Columbia Encyclopedia

Search results

500 results found

crabgrass

(Encyclopedia)crabgrass, name for any of several grass species of the genera Digitaria, Eleusine, and Panicum, especially the species D. sanguinalis. Crabgrass is a common lawn weed, especially in the S and E Unite...

broom rape

(Encyclopedia)broom rape, common name for plants of the Orobanchaceae, the broom rape family. They are parasitic on the roots of other plants; they have small leaves and little or no green color. In some species th...

bird of paradise

(Encyclopedia)bird of paradise, common name for any of 43 species of medium- to crow-sized passerine birds of New Guinea and the adjacent islands, known for the bright plumage, elongated tail feathers called wires,...

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,...

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...

buckwheat

(Encyclopedia)buckwheat, common name for certain members of the Polygonaceae, a family of herbs and shrubs found chiefly in north temperate areas and having a characteristic pungent juice containing oxalic acid. Sp...

crocodile

(Encyclopedia)crocodile, large, carnivorous reptile of the order Crocodilia, found in tropical and subtropical regions. Crocodiles live in swamps or on river banks and catch their prey in the water. They have flatt...

scarab beetle

(Encyclopedia)scarab beetle or scarab, name for members of a large family of heavy-bodied, oval beetles (the Scarabaeidae), with about 30,000 species distributed throughout most of the world and over 1,200 in North...

bat

(Encyclopedia)bat, winged mammal of the order Chiroptera, which includes 900–1,000 species classified in about 200 genera and 17 families. Bats range in size from a wingspread of over 5 ft (150 cm) to a wingsprea...

croton, in botany

(Encyclopedia)croton krōˈtən [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 cultivated forms of hig...