Research topic:perennial

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Find more facts and information on our topic page about perennial

perennial

A Dictionary of Plant Sciences | 1998 | | © A Dictionary of Plant Sciences 1998, originally published by Oxford University Press 1998. (Hide copyright information) Copyright

perennial A plant that normally lives for more than 2 seasons and, after an initial period, produces flowers annually.

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MICHAEL ALLABY. "perennial." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 28 Nov. 2009 <http://www.encyclopedia.com>.

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Perennials are pretty perfect.(Life)
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Related entries from encyclopedias, dictionaries, and thesauruses

perennial
Book article from: The Columbia Encyclopedia, Sixth Edition ...Cumming and R. E. Lee, Contemporary Perennials (1960); J. U. Crockett, Perennials (1972); A. M. Armitage, Herbaceous Perennial Plants (1989); R. R. Clausen and N. H. Ekstrom, Perennials for American Gardens (1989); P...
perennial stream
Book article from: A Dictionary of Ecology perennial stream A stream that normally flows throughout the year, albeit with low dry-weather flows in occasional drought years.
Perennial philosophy
Book article from: The Concise Oxford Dictionary of World Religions Perennial philosophy: see PHILOSOPHIA PERENNIS .
onion, perennial
Book article from: A Dictionary of Food and Nutrition onion, perennial See onion, Welsh .
Hay Fever
Book article from: U*X*L Complete Health Resource ...two types of hay fever: seasonal and perennial. Seasonal hay fever occurs in the spring...pollens in the air is at its highest. Perennial hay fever occurs all year. It is usually...worst after being outdoors. Symptoms of perennial hay fever are worst after spending time...

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