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fleabane

(Encyclopedia)fleabane, any plant of the genus Erigeron, widely distributed herbs of the family Asteraceae (aster family), especially abundant in temperate and mountainous regions of North America. The flowers, ran...

hornbeam

(Encyclopedia)hornbeam or ironwood, name in North America for two groups of trees of the family Betulaceae (birch family), native to the eastern half of the continent. Carpinus caroliniana, also called blue beech a...

pickerelweed

(Encyclopedia)pickerelweed, common name for the Pontederiaceae, a family of chiefly tropical perennial aquatic herbs found in freshwater. The pickerelweeds (genus Pontederia) range north into temperate regions, inc...

wallflower

(Encyclopedia)wallflower, Mediterranean perennial (Cheiranthus cheiri) of the family Cruciferae (or Brassicaceae; mustard family), particularly popular in Europe, where it flourishes on old walls. An old-fashioned ...

waxwing

(Encyclopedia)waxwing, any of three species of perching songbirds of the Northern Hemisphere. Waxwings have crests (raised only in alarm) and sleek brownish-gray plumage with flecks of red pigment resembling sealin...

ash, in botany

(Encyclopedia)ash, in botany, any plant of the genus Fraxinus of the family Oleaceae (olive family), trees and shrubs mainly of north temperate regions. The ashes are characterized by small clusters of greenish flo...

Mackenzie

(Encyclopedia)Mackenzie, river, c.1,120 mi (1,800 km) long, issuing from Great Slave Lake, Northwest Territories, Canada, and flowing generally NW to the Arctic Ocean through a great delta. Between Great Slave Lake...

reindeer

(Encyclopedia)reindeer, ruminant mammal, genus Rangifer, of the deer family, found in arctic and subarctic regions of Eurasia and North America. It is the only deer in which both sexes have antlers. The Eurasian re...

Vancouver Island

(Encyclopedia)Vancouver Island (1991 pop. 579,921), 12,408 sq mi (32,137 sq km), SW British Columbia, Canada, in the Pacific Ocean; largest island off W North America. It is c.285 mi (460 km) long and c.30 to 80 mi...

Paleocene epoch

(Encyclopedia)Paleocene epoch pāˈlēəsēnˌ [key], first epoch of the Tertiary period in the Cenozoic era of geologic time (see geologic timescale) between 60 to 66 million years ago. In W North America, the upl...