University of Illinois Plant Biology Herbarium (ILL) and Crop Evolution Lab Herbarium (CEL) Vascular Plants

The ILL herbarium holds approximately 520,000 vascular plants with one-third of the specimens from early Illinois; one-third from other states, largely from the west; and the last third of the specimens from outside the United States. Their total types are approximately 4,000 and include many holotypes.

The CEL herbarium has around 55,000 specimens specializing in Poaceae, particularly Andropogoneae and genera of cereals, and cultivated Fabaceae. This important crop plant collection contains many artificial hybrids of our cultivated plants and collections of their wild ancestors.