Diplusion rigida
| Diplusion rigida (Muhlenberg) Rafinesque, Alsogr. Amer. 15. 1838. | BASIONYM: Salix rigida Muhlenberg 1803. | |
Salix cordata var. rigida
| Salix cordata Muhlenberg, var. rigida (Muhlenberg) J. Carey, in A. Gray, Manual 427. 1848. | BASIONYM: Salix rigida Muhlenberg 1803. | |
Salix myricoides var. rigida
| Salix myricoides Muhlenberg, var. rigida (Muhlenberg)Dippel, Handb. Laubholzk. 2: 282. 1892. | BASIONYM: Salix rigida Muhlenberg 1803. | |
Salix rigida
| Salix rigida Muhlenberg, Ges. Naturf. Freunde Berlin Neue Schriften 4: 237. 1803. | | TYPE: PENNSYLVANIA: Lancaster Co.: Lancaster, s.d., Muhlenberg 570 (holotype: PH). |
Salix acutidens
| Salix acutidens Rydberg, in Britton, Man. Fl. N. States 315. 1901. | | TYPE: PENNSYLVANIA: Lancaster Co.: Dillerville Swamp, 10 Jul 1901, Heller 4917 (lectotype: NY). Lectotypified by Argus, Syst. Bot. Monogr. 9: 128. 1986. |
Salix angustata
| Salix angustata Pursh, Fl. Amer. Sept. 613. 1814. | | |
Salix cordata
| Salix cordata Muhlenberg, Ges. Naturf. Freunde Berlin Neue Schriften 4: 236. 1803, non Michaux 1803. | | TYPE: PENNSYLVANIA: Lancaster Co.: Lancaster, s.d., Muhlenberg 569 (holotype: PH). |
Salix cordata forma mollis
| Salix cordata Muhlenberg, forma mollis E. J. Palmer & Steyermark, Ann. Missouri Bot. Gard. 25: 770. 1938. | | TYPE: MISSOURI: Dent Co.: Spring branch of Twin Springs, 4 Aug 1936, Steyermark 12491 (holotype: MO). |
Salix cordata forma subintegra
| Salix cordata Muhlenberg, forma subintegra E. J. Palmer & Steyermark, Ann. Missouri Bot. Gard. 25: 770. 1938. | | TYPE: MISSOURI: Phelps Co.: Lake at Yancy Mills Spring, 28 Nov 1936, Steyermark 20910 (holotype: MO ?). |
Salix cordata forma vestita
| Salix cordata Muhlenberg, forma vestita Andersson, Monogr. Salicum 159. 1867. | | TYPE: MISSOURI: Cole Co.?: Fort Osage, 1833, Wied-Neuwied s.n. (holotype: W(destroyed); lectotype: BR). Lectotypified by Dorn, Brittonia 47: 162. 1995. |
Salix cordata var. abrasa
| Salix cordata Muhlenberg, var. abrasa Fernald, Rhodora 48: 34. 1946. | | TYPE: CANADA: QUEBEC: Gaspe Co.: R. Ste. Annes des Monts, 14-17 Jul 1906, Fernald & Collins 484 (holotype: GH; isotype: CAN). |
Salix cordata var. angustata
| Salix cordata Muhlenberg, var. angustata (Pursh) Andersson, in de Candolle, Prodr. 16(2): 252. 1868. | BASIONYM: Salix angustata Pursh 1814. | |
Salix cordata var. missouriensis
| Salix cordata Muhlenberg, var. missouriensis (Bebb) Mackenzie & Bush, Man. Fl. Jackson County 69. 1902. | BASIONYM: Salix missouriensis Bebb 1895; Salix cordata Muhlenberg, forma vestita Andersson 1867. | |
Salix missouriensis
| Salix missouriensis Bebb, Garden & Forest 8: 373. 1895. | BASIONYM: Salix cordata Muhlenberg, forma vestita Andersson 1867. | |
Salix myricoides var. angustata
| Salix myricoides Muhlenberg, var. angustata (Pursh) Dippel, Handb. Laubholzk. 2: 283. 1892. | BASIONYM: Salix angustata Pursh 1814. | |
Salix myricoides var. cordata
| Salix myricoides Muhlenberg, var. cordata Dippel, Handb. Laubholzk. 2: 134. 1892. | BASIONYM: Salix cordata Muhlenberg 1803, non Michaux 1803. | |
Salix rigida forma mollis
| Salix rigida Muhlenberg, forma mollis (E. J. Palmer & Steyermark) Fernald, Rhodora 48: 38. 1946. | BASIONYM: Salix cordata Muhlenberg, forma mollis E. J. Palmer & Steyermark 1938. | |
Salix rigida var. angustata
| Salix rigida Muhlenberg, var. angustata (Pursh) Fernald, Rhodora 48: 38. 1946. | BASIONYM: Salix angustata Pursh 1814. | |
Salix rigida var. vestita
| Salix rigida Muhlenberg, var. vestita (Andersson) C. R. Ball, in Gleason, Ill. Fl. N.E. U.S. 2: 10. 1952, nom. illegit. | BASIONYM: Salix cordata Muhlenberg, var. missouriensis (Bebb) Mackenzie & Bush 1902; Salix missouriensis Bebb 1895; Salix cordata Muhlenberg, forma vestita Andersson 1867. | |
Salix torreyana
| Salix torreyana Barratt, Salices Amer., Sp. 29. 1840. | | TYPE: CONNECTICUT: Middlesex Co.: Middletown, s.d., Barratt s.n. (lectotype: NY). Lectotypified by Dorn, Brittonia 47: 162. 1995. |