Decaisnea
The genus name Decaisnea may refer to:
- Plantae:
- Decaisnea Hook.f. & Thomson, 1855, nom. cons. (Magnoliophyta : Lardizabalaceae)
- Decaisnea Lindl., 1831, nom. nud. (Magnoliophyta : Orchidaceae) = Tropidia
- Decaisnea Brongn., 1834, nom. rej (Magnoliophyta : Orchidaceae) = Prescottia