Carduus undulatus var. megacephalus Greene

, Proc. Acad. Nat. Sci. Philadelphia 1892: 360 (1893). BHL
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:45607-2
Publication
Proceedings of the Academy of Natural Sciences of Philadelphia. Philadelphia, PA
Collation
1892: 360
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Cnicus undulatus var. megacephalus A.Gray, Proc. Amer. Acad. Arts 10: 42 (1874).
Same citation as
Carduus undulatus var. megacephalus (A.Gray) Greene