Orchidaceae | |
Platanthera grandiflora fo. albiflora
| (E.L. Rand & Redfield) Catling | Naturaliste Canad. 109: 277 | 1982 |
Orchidaceae | |
Platanthera grandiflora fo. bicolor
| P.M. Br. | N. Amer. Native Orchid J. 1: 12 | 1995 |
Orchidaceae | |
Platanthera grandiflora fo. carnea
| P.M. Br. | N. Amer. Native Orchid J. 1: 12 | 1995 |
Orchidaceae | |
Platanthera grandiflora fo. mentotonsa
| (Fernald) P.M. Br. | Wild Fl. Notes 3: 22 | 1988 |