Common Name - -	Family : Order
Warty brassia - -	Orchidaceae : Asparagales
Wax plant - -	Apocynaceae : Gentianales
West Indian vanilla - -	Orchidaceae : Asparagales
Western blazing white sage - -	Lamiaceae : Lamiales
Whale tail palm - -	Arecaceae : Arecales
Whipcord cobra lily - -	Araceae : Alismatales
White baneberry - -	Ranunculaceae : Ranunculales
White catchfly - -	Caryophyllaceae : Caryophyllales
White clover - -	Fabaceae : Fabales
White ginger lily - -	Zingiberaceae : Zingiberales
White star - -	Orchidaceae : Asparagales
White sticky catchfly - -	Caryophyllaceae : Caryophyllales
Whitebark magnolia - -	Magnoliaceae : Magnoliales
White-flowered apple mangrove - -	Lythraceae : Myrtales
White-flowered black mangrove - -	Combretaceae : Myrtales
White-leaved fig - -	Moraceae : Rosales
Wild angelica - -	Apiaceae : Apiales
Wild chervil - -	Apiaceae : Apiales
Wild poinsettia - -	Rubiaceae : Gentianales
Wild tea rose - -	Rosaceae : Rosales
Wild tobacco - -	Solanaceae : Solanales
Williamson's dendrobium - -	Orchidaceae : Asparagales
Willow leaved fig - -	Moraceae : Rosales
Willowleaf yellowhead - -	Asteraceae : Asterales
Winged beauty shrub - -	Euphorbiaceae : Malpighiales
Winged four o'clock - -	Nyctaginaceae : Caryophyllales
Winged-stem passion flower - -	Passifloraceae : Malpighiales
Winter oilseed rape - -	Brassicaceae : Brassicales
Winter savory - -	Lamiaceae : Lamiales
Winter squash - -	Cucurbitaceae : Cucurbitales
Winter's bark - -	Winteraceae : Canellales
Wintersweet - -	Calycanthaceae : Laurales
Wood pink - -	Caryophyllaceae : Caryophyllales
Woodcock bee-orchid - -	Orchidaceae : Asparagales
Wright's gardenia - -	Rubiaceae : Gentianales
Wright's trumpets - -	Nyctaginaceae : Caryophyllales
Wrinkled giant hyssop - -	Lamiaceae : Lamiales