Taxonomic Filter:
Taxa Count: 16
ASTERACEAE
Silphium
Silphium asperrimum
Silphium asteriscus
Silphium asteriscus var. asteriscus
Silphium asteriscus var. latifolium
Silphium asteriscus var. simpsonii
Silphium compositum
Silphium confertifolium
Silphium connatum
Silphium dentatum
Silphium glabrum
Silphium integrifolium
Silphium integrifolium var. integrifolium
Silphium laciniatum
Silphium perfoliatum
Silphium terebinthinaceum