University of Colorado Herbarium Databases

Silphium compositum Michx.  

Family: Asteraceae

[Silphium compositum ssp. ovatifolium (Torr. & A. Gray) Sweeny & T.R. Fisher, moreSilphium compositum ssp. reniforme (Raf. ex Nutt.) Sweeny & T.R. Fisher, Silphium compositum ssp. venosum (Small) Sweeny & T.R. Fisher, Silphium compositum var. compositum Michx., Silphium compositum var. ovatifolium Torr. & A. Gray, Silphium compositum var. reniforme (Raf. ex Nutt.) Torr. & A. Gray, Silphium compositum var. venosum (Small) Kartesz & Gandhi, Silphium lapsuum Small, Silphium orae Small, Silphium ovatifolium (Torr. & A. Gray) Small, Silphium reniforme Raf. ex Nutt., Silphium venosum Small]