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porcupine, in zoology

(Encyclopedia)porcupine, member of either of two rodent families, characterized by having some of its hairs modified as bristles, spines, or quills. The quills are loosely attached to the porcupines' skin and pull ...

arborvitae

(Encyclopedia)arborvitae ärˌbərvīˈtē [key] [Lat.,=tree of life], aromatic evergreen tree of the genus Thuja of the family Cupressaceae (cypress family), with scalelike leaves borne on flattened branchlets of ...

larch

(Encyclopedia)larch, any tree of the genus Larix, conifers of the family Pinaceae (pine family), which are unusual in that they are not evergreen. The various species are widely distributed in the Northern Hemisphe...

kapok

(Encyclopedia)kapok kāˈpŏk, kăpˈək [key], name for a tropical tree of the family Bombacaceae (bombax family) and for the fiber (floss) obtained from the seeds in the ripened pods. The floss has been important...

cinchona

(Encyclopedia)cinchona chĭngkōˈnə [key], name for species of the genus Cinchona, evergreen trees of the madder family native to the Andean highlands from Bolivia to Colombia and also to some mountainous regions...

gamboge

(Encyclopedia)gamboge gămbōjˈ [key] [Fr.,=Cambodia], an intensely yellow pigment obtained from the sap of Garcinia morella, a tree of SE Asia and Sri Lanka. ...

phloem

(Encyclopedia)phloem flōˈĕm [key]: see bark; stem. ...

myrtle

(Encyclopedia)myrtle, common name for the Myrtaceae, a family of shrubs and trees almost entirely of tropical regions, especially in America and Australia. The family is characterized by leaves (usually evergreen) ...

Dubawnt Lake

(Encyclopedia)Dubawnt Lake do͝obôntˈ [key], one of the largest lakes of Canada, c.1,600 sq mi (4,140 sq km), in S Nunavut Territory. The Dubawnt River flows through it. Located north of the tree line, the lake i...

ylang-ylang

(Encyclopedia)ylang-ylang ēˈläng-ēˈläng [key], perfume oil obtained by distillation of the fragrant flowers of Cananga odorata, a large tropical Asian tree of the custard-apple family. The oil is highly value...