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s p e c i e s b y s p e c i e s 11. Cactus Pear (Opuntia ficus-indica) - Miracle of Water Conservation tree, 3–5 m (10–16 feet) tall, native to the desert zones of E. Small and P.M. Catling northwestern Mexico and southwestern United States, with Biodiversity, National Program on Environmental Health dozens of cultivated varieties available. The species was Agriculture and Agri-Food Canada brought to Europe from Mexico by the first Spanish colonists Ottawa, Ontario, Canada K1A 0C6 and it has been cultivated along the Mediterranean coast since th Email: smalle@agr.gc.ca OR catlingp@agr.gc.ca the late 17 century. One or more attractive, reddish (some- times white, pink or yellow) flowers occur on the upper edge Freshwater accounts for only about 2.5% of the water on of the highly flattened segments (pads). Earth and it is becoming so scarce that many people feel The genus of Prickly Pears, Opuntia, contains at least 300 that it will be “the world’s next gold”. Agriculture uses 70% species, and several are cultivated (see Scheinvar in Barbera of the world’s freshwater and different crops require vary- et al. 1995). Classification and identification of the group is ing amounts of it.
Biodiversity – Taylor & Francis
Published: Mar 1, 2004
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