annuus
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-a, -um
As a species name, means “annual.” For example, the common sunflower, Helianthus annuus, is an annual.
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Taylor's Dictionary for Gardeners
Taylor's Dictionary for Gardeners, by Frances Tenenbaum. Copyright © 1997 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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