The ASU Herbarium is the largest component of the Angelo State Natural History Collections (ASNHC) and comprises about 80,000 plant specimens that are pressed, dried and mounted on archival paper and filed in metal cabinets.
It is the eighth-largest herbarium in Texas and represents the most complete floristic inventory of the Concho Valley of Texas.
In addition to this special emphasis, 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 resulting from several ecological and systematic studies of rare plants are also housed in our collection. We have significant holdings in the Poaceae and Cyperaceae. Our official abbreviation is SAT.
The Herbarium employs undergraduate assistants and welcomes volunteer help.
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 with the arrival of Dr. Chester Rowell Jr. in 1972.
Rowell served as curator until his retirement in 1987. Dr. Bonnie Amos became curator at that time and remained in that position until 2021. Dr. Carlos Maya-Lastra is the current curator of the Herbarium, and is looking forward to continuing the growth of the oldest of the ASNHC’s collections.
Data for ASNHC Herbarium specimens can be searched on the Symbiota-based TORCH (Texas and Oklahoma Regional Consortium of Herbaria) data portal.
The collection is available for study by all qualified visitors who set up an appointment. Requests for loans from recognized botanical institutions will be honored, provided that adequate facilities are available for the care of the specimens while on loan.
Persons requesting loans involving destructive sampling will be asked to provide one of the following:
Aliquots of extracted DNA to be stored in our genomic collection (leftovers are acceptable), or
NCBI (or similar public database) identifier to the specific sequence(s) derived from the specimen, or
Unused specimen
The SAT Herbarium is part of the ASNHC, and we appreciate acknowledgment in scientific publications that use the information derived from these specimens.
Requests must be in writing from the curator of the borrowing institution to the ASU curator. Loans are made for a period of one year with extensions possible by written request. No destructive sampling is permitted without prior consent.
The ASU Department of Biology has a strong undergraduate research program. Many of the recently completed or ongoing botany research projects involve undergraduate biology majors.
The reproductive biology of the threatened Chisos Mountain Hedgehog Cactus (Echinocereus chisoensis, Cactaceae)
Floral spectral analyses
Reintroduction of the endangered Texas Poppy Mallow
Investigating rare plant genetic diversity
Establishing an experimental population of Echinocereus chisoensis
Herbarium database implementation
Plant Identification
We will be glad to help with the identification of plant specimens, particularly those representing the native flora of Texas. However, because of other responsibilities, we cannot always guarantee immediate responses to such requests. We can also arrange tours of the Herbarium or organize educational programs about Texas plants. Please contact the curator for additional information.
