Wolffia brasiliensis
Wolffia columbiana
Wolffia globosa
Wolffiella
Wolffiella gladiata
Wolffiella lingulata
Wolffiella oblonga
Wolffiella welwitschii
Wollemia
Wollemia nobilis
Woodfordia lacertosa
Woodfordia superciliosa
Woodsia
Woodsia alpina
Woodsia appalachiana
Woodsiaceae
Woodsia cochisensis
Woodsia glabella
Woodsia ilvensis
Woodsia neomexicana
Woodsia obtusa
Woodsia oregana
Woodsia phillipsii
Woodsia plummerae
Woodsia pulchella
Woodsia scopulina
Woodwardia
Woodwardia areolata
Woodwardia fimbriata
Woodwardia radicans
Woodwardia virginica
Wulffia baccata
Wulfila
Wullschlaegelia
Wullschlaegelia aphylla
Wyethia
Wyethia amplexica
Wyethia amplexicaulis
Wyethia angustifolia
Wyethia arizonica
Wyethia glabra
Wyethia helenioides
Wyethia helianthoides
Wyethia longicaulis
Wyethia mollis
Wynnea
Wynnea americana
Wynnea sparassoides
Wyulda squamicaudata
Xanthandrus comtus
Latina Nova