Dataset: All Collections
Taxa: Salix humilis var. tristis (Salix alpina, Salix longirostris, Salix muehlenbergiana, Salix recurvata, Salix tristis, Salix humilis var. microphylla, Salix tristis var. longifolia, Salix tristis var. microphylla, Salix tristis var. momadelphia)
Search Criteria: excluding cultivated/captive occurrences