Descriptions of previously undescribed taxa are provided for plant taxa from Colorado (Phacelia), New Mexico (Phacelia; Mentzelia), and Arizona (Xylorhiza).
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1 May 2013
New Plant Taxa from Colorado, New Mexico, and Arizona
N. Duane Atwood,
Stanley L. Welsh
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Western North American Naturalist
Vol. 73 • No. 1
May 2013
Vol. 73 • No. 1
May 2013