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Oenothera
Oenothera (evening primrose; family Onagraceae) A genus of flowering plants that have spirally arranged leaves and 4-petalled, large, usually yellow to orange flowers in a leafy spike. The seeds, unlike those of some other genera in the family, are not plumed. The unusual chromosome morphology and genetic mechanism of Oenothera have been the subject of much study by cytogeneticists. There are about 80 species, native to N. America, but some are much cultivated in gardens for the flowers, both as species and as hybrids, and are now well naturalized in Europe and elsewhere.
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MICHAEL ALLABY. "Oenothera." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "Oenothera." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-Oenothera.html MICHAEL ALLABY. "Oenothera." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-Oenothera.html |
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Oenothera
Oenothera : see evening primrose . |
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Cite this article
"Oenothera." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "Oenothera." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-X-Oenother.html "Oenothera." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-Oenother.html |
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