Synonyms
Nicotiana quadrivalvis var. wallacei Mansf. (A.Gray)
Nicotiana quadrivalvis var. bigelovii De Wolf (Torr.)
Dictyocalyx multivalvis Hook.f. ex Walp.
Dictyocalyx quadrivalvis Hook.f. ex Walp.
Polydiclis quadrivalvis (Pursh) Miers
Nicotiana multivalvis Lindl.
Amphipleis quadrivalvis Raf.
Polydiclis multivalvis Miers
Nicotiana quadrivalvis var. multivalvis (Lindl.) A.Gray
Nicotiana bigelovii var. wallacei A.Gray
Nicotiana bigelovii (Torr.) S.Watson
Nicotiana plumbaginifolia var. bigelovii Torr.