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Journal Article

Specific and Varietal Characters in Annual Sunflowers

T. D. A. Cockerell
The American Naturalist
Vol. 49, No. 586 (Oct., 1915), pp. 609-622
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Page Count: 14

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Topics: Plants, Species, Bracts, Sunflowers, Leaves, Wild plants, Diameters, Corolla, Hybridity, Annuals
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