The University of Wisconsin-Milwaukee Herbarium (UWM) is one of the largest in the state, with a total of approximately 62,000 accessioned specimens with a further 4,000 specimens unaccessioned at UWM or housed at the UWM Field Station. The majority of the dried plant specimens are from Wisconsin, especially the southeastern portion of the state. Also included is an extensive collection of the flora found at the University of Wisconsin-Milwaukee Field Station, a six square mile area of wetlands and mixed deciduous forests. UWM also has collections from other areas of the country and the world. These include the American Southwest (especially the Sonoran Desert), Australia, Northern Europe, and Alaska. The collection is growing, especially in the Ranunculaceae (buttercup family) and related families (Ranunculales).