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By: Irwin, Joshua J - Stubbs, Rebecca - Hartman, Ronald LType: ArticleIn: Journal of the Botanical Research Institute of TexasVolume: 6Series:Issue: 2Date: 2012Page Range: 331--338Publication Info: Fort Worth, Tex Botanical Research Institute of Texas 2007-Subjects:
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By: Stubbs, Rebecca - Patterson, RobertType: ArticleIn: Madroño; a West American journal of botanyVolume: 60Series:Issue:Date: 2013Page Range: 243--248Publication Info: Berkeley, California Botanical Society,Subjects: