Silphium compositum subsp. ovatifolium (Torr. & A.Gray) C.R.Sweeney & T.R.Fisher

, Ohio J. Sci. 70: 232 (1970).
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:236431-2
Publication
Ohio Journal of Science
Collation
70: 232
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Silphium compositum var. ovatifolium Torr. & A.Gray, Fl. N. Amer. (Torr. & A. Gray) 2(2): 277 (1842).