The Rocky Mountain Research Station herbarium (ALBU) is located in Albuquerque, New Mexico. 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. Three families account for 60% of the total specimens present in the collection (31% Poaceae, 22% Asteraceae, 7% Fabaceae). No specimens of ferns or bryophytes are represented currently in ALBU.