| Ericaceae | |
Kalmia latifolia fo. alba
| (Mouill.) Rehder | Rhodora 12(133): 2 | 1910 |
| Ericaceae | |
Kalmia latifolia var. alba
| Mouill. | | |
| Ericaceae | |
Kalmia latifolia fo. fuscata
| (Rehder) Rehder | Rhodora 12(133): 2 | 1910 |
| Ericaceae | |
Kalmia latifolia var. fuscata
| Rehder | Möller's Deutsche Gärtn.-Zeitung 18: 578 | 1903 |
| Ericaceae | |
Kalmia latifolia var. laevipes
| Fernald | Rhodora 42(494): 53–54 | 1940 |
| Ericaceae | |
Kalmia latifolia fo. latifolia
| | | |
| Ericaceae | |
Kalmia latifolia var. latifolia
| | | |
| Ericaceae | |
Kalmia latifolia fo. obtusata
| (Rehder) Rehder | Rhodora 12(133): 2–3 | 1910 |
| Ericaceae | |
Kalmia latifolia var. obtusata
| Rehder | Möller's Deutsche Gärtn.-Zeitung 18: 577 | 1903 |
| Ericaceae | |
Kalmia latifolia fo. polypetala
| (G. Nicholson) Rehder | Rhodora 12(133): 1 | 1910 |
| Ericaceae | |
Kalmia latifolia var. polypetala
| G. Nicholson | Hand-list Arb. Kew, ser. 2, 49 | 1896 |
| Ericaceae | |
Kalmia latifolia fo. rubra
| K. Koch | | |