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Arizona State University Vascular Plant Herbarium (ASU-Plants)

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The Arizona State University Vascular Plant Herbarium (ASU) is among the most important in the greater Sonoran Desert region with over 315,000 specimens. We are particularly proud of our holdings of Cactaceae which include over 1,100 chromosome counts.

An herbarium is a collection of pressed, dried, and archived plants that are systematically arranged - each specimen a physical record of a plant growing at a particular place and at a particular time. Like most herbaria, we seek to document the geographical and ecological distribution of the regional flora, facilitate research, support teaching, and promote conservation. Vouchers from floristic studies have resulted in comprehensive collections of many important geographic regions in Arizona.

ASU Type Specimens: http://swbiodiversity.org/seinet/checklists/checklist.php?cl=2638


  • Collection manager: Elizabeth Makings, Elizabeth.Makings@asu.edu


Arizona State University Herbarium
Natural History Collections
P. O. Box 874108
Tempe, Arizona   85287-4108
(480) 965-6162

Collection Statistics

  • 314,280 specimen records
  • 235,916 (75%) georeferenced
  • 199,182 (63%) with images (224,382 total images)
  • 3 GenBank genetic references
  • 265,706 (85%) identified to species
  • 459 families
  • 4,618 genera
  • 28,688 species
  • 33,981 total taxa (including subsp. and var.)

Extra Statistics

Collection Type: Preserved Specimens
Management: Live Data managed directly within data portal
Last Update: 7 June 2024
Global Unique Identifier: a2e32c87-d320-4a01-bafd-a9182ae2e191
Digital Metadata:EML File