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External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:61815-2
- Publication
- Proceedings of the American Academy of Arts and Sciences. Boston, MA
- Collation
- 10: 42
- Family as entered in IPNI
- Asteraceae
Type Information
- Distribution Of Types
- Texas, Oregon &
Minnesota, United States of America (Northern America)
Links
- Basionym of
- Cirsium megacephalum (A.Gray) Cockerell, Univ. Missouri Stud., Sci. Ser. 2(2): 254 (1911).
- Basionym of
- Carduus megacephalus (A.Gray) Nutt. ex Daniels, Univ. Missouri Stud., Sci. Ser. 2(2): 254 (1911), nom. inval.
- Basionym of
- Cirsium megacephalum (A.Gray) Cockerell, Univ. Missouri Stud., Sci. Ser. 2(2): 254 (1911).
- Nomenclatural link
- Carduus undulatus var. megacephalus Greene, Proc. Acad. Nat. Sci. Philadelphia 1892: 360 (1893).
- Nomenclatural link
- Cirsium undulatum var. megacephalum Fernald, Rhodora 10: 94 (1908).
- Nomenclatural link
- Cirsium undulatum var. megacephalum (A.Gray) Fernald
- Nomenclatural link
- Carduus megacephalus (A.Gray) Nutt. ex Daniels, Univ. Missouri Stud., Sci. Ser. 2(2): 254 (1911), nom. inval.
- Nomenclatural link
- Carduus undulatus var. megacephalus (A.Gray) Greene
- Nomenclatural link
- Cirsium megacephalum (A.Gray) Cockerell, Univ. Missouri Stud., Sci. Ser. 2(2): 254 (1911).
Full Record