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quaking grass

(Encyclopedia)quaking grass, any plant of the genus Briza, annuals or perennials of the Poaceae (grass family), cultivated for the graceful clusters of seeds, which vibrate in a breeze and are used in everlasting b...

Douglas, David

(Encyclopedia)Douglas, David, 1798–1834, Scottish botanist. He made several journeys in North America between 1823 and 1834 to study American plants and sent to Scotland more than 200 plants and seeds then unknow...

Latin American Integration Association

(Encyclopedia)Latin American Integration Association (LAIA), organization formed in 1980 by Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Mexico, Paraguay, Peru, Uruguay, and Venezuela, taking over the duti...

conquistador

(Encyclopedia)conquistador kŏnkwĭsˈtədôr, Span. kōng-kēˌstäᵺôrˈ [key], military leader in the Spanish conquest of the New World in the 16th cent. Francisco Pizarro, the conqueror of Peru, and Hernán C...

sodium nitrate

(Encyclopedia)sodium nitrate, chemical compound, NaNO3, a colorless, odorless crystalline compound that closely resembles potassium nitrate (saltpeter or niter) in appearance and chemical properties. It is soluble ...

Vaca de Castro, Cristóbal

(Encyclopedia)Vaca de Castro, Cristóbal krēstōˈbäl väˈkä ᵺā käˈstrō [key], fl. 1540–45, Spanish colonial administrator in Peru. A judge of the royal audiencia at Valladolid, he was chosen by Charles...

West Siberian Plain

(Encyclopedia)West Siberian Plain, an extensive region of continuous flatland, N Asia, comprising the western third of Siberia, Russia. It is bounded on the east by the Yenisei River, on the north by the Arctic Oce...

Kaieteur Falls

(Encyclopedia)Kaieteur Falls kīəto͝orˈ [key], waterfall, 741 ft (226 m) high, in the Potaro River, W Guyana. It plunges over an escarpment of the Guyana Highlands. One of the most impressive falls in South Amer...

Garay, Juan de

(Encyclopedia)Garay, Juan de hwän dā gärīˈ [key], c.1528–1583, Spanish conquistador, refounder of Buenos Aires. He went to Peru (1544) in the train of the first viceroy, Blasco Núñez Vela, and was active a...

reductions

(Encyclopedia)reductions, Span. reducciones, settlements of indigenous peoples in colonial Latin America, founded (beginning in 1609) to utilize efficiently native labor and to teach the natives the ways of Spanish...