Lactuca biennis f. integrifolia (Torr. & A.Gray) Fernald

, Rhodora 42: 302 (1940). BHL
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External links to taxonomic opinions:
POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:134514-2
Publication
Rhodora; Journal of the New England Botanical Club. Cambridge, MA
Collation
42: 302
Family as entered in IPNI
Asteraceae

Links

Nomenclatural link
Mulgedium leucophaeum var. integrifolium Torr. & A.Gray, Fl. N. Amer. (Torr. & A. Gray) 2: 499 (1843).
Same citation as
Lactuca biennis f. integrifolia (Torr. & A.Gray) Fernald