Arizona State University Vascular Plant Herbarium
The Arizona State University Plant Herbarium is the second largest in the Arid Southwest, having over 260,000 mounted specimens. Its collection of Cactaceae is one of the best in the World, being particularly rich in cytological voucher specimens. Collections resulting from various floristic treatments in Arizona and Mexico make the ASU Vascular Plant Herbarium a unique resource.
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Apr 3, 2007