Dataset: All Collections
Taxa: Helianthus giganteus (Helianthus alienus, Helianthus borealis, Helianthus subtuberosus, Helianthus validus, Helianthus nuttallii var. subtuberosus, Helianthus giganteus ssp. alienus, Helianthus giganteus var. subtuberosus)
Search Criteria: excluding cultivated/captive occurrences