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Leaf Epidermal Feature of Astragalus L. Subgenus Pogonophace Bunge(Leguminosae) from China and Its Systematic Significance
KANG Yun;ZHANG Ming-Li;*
Bulletin of Botanical Research . 2009, (1): 25 -32 .  DOI: 10.7525/j.issn.1673-5102.2009.01.007