Rocky Mountain Research Station Herbarium, Albuquerque

As of August 2026, ALBU is 100% digitized and contains a total of 1,447 vascular plant specimens, collected between 1955 and 2006. Nearly all of the specimens were collected within the National Forests of three western states.

A small amount were gathered from BLM-managed areas. Geographically, 83% of the specimens are from New Mexico, 13% from Arizona, and 1% from Colorado. Taxonomically, more than 99% of the collection belongs to angiosperm families.