Taxa: Silphium compositum (Silphium lapsuum, Silphium orae, Silphium ovatifolium, Silphium reniforme, Silphium venosum, Silphium compositum var. compositum, Silphium compositum ssp. ovatifolium, Silphium compositum ssp. reniforme, Silphium compositum ssp. venosum, Silphium compositum var. ovatifolium, Sil
... (show all)phium compositum var. reniforme, Silphium compositum var. venosum)