The SAT Herbarium is the largest component of the Angelo State Natural History Collections (ASNHC) and comprises an estimated 80,000 plant specimens, with significant holdings in the Poaceae and Cyperaceae families. It is the eighth-largest herbarium in Texas, and represents the most complete floristic inventory of the Concho Valley region. In addition, the Herbarium serves as a permanent depository for voucher specimens for floristic surveys of several unique areas in West Texas, including Big Bend National Park, Texas Nature Conservancy Big Brushy Canyon, and Texas Nature Conservancy Independence Creek. Specimens from several ecological and systematic studies of rare plants are also housed in our collection. Glenn Casey started the Herbarium in the 1940s. At that time, it was called the Goodman Herbarium, in honor of the late Oklahoma botanist, Dr. George Goodman. The collection languished briefly in the late 1960s after Casey’s departure and during ASU’s transition from the two-year San Angelo College to Angelo State University. It was revitalized in 1972 with the arrival of Dr. Chester Rowell Jr., who served as curator until his retirement in 1987. At that time, Dr. Bonnie Amos became curator, until her retirement in 2021. In 2023, Dr. Carlos A. Maya-Lastra arrived at Angelo State University, becoming the new curator of this collection. The SAT Herbarium invites review of specimen identification--please contact the Collections Manager with any suggested updates to listed taxonomy.