ISU ‘herbarium’ is home to 710,000 plant specimens, including every native Iowa plant

An extensive botanical reference library that’s a growing resource for documenting and doing research has been on the Iowa State University campus for more than one-and-a-half centuries. The Ada Hayden Herbarium is home to nearly three-quarters of a million plant samples, according to curator Deb Lewis. She calls the herbarium a one-stop shop for studying […]

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