Worsleya procera [(Lem.) Traub] syn. Amaryllis procera

Worsleya rayneri

Wrightia antidysenterica [(L.) R.Br.]

Wrightia coccinea [(Roxb. ex Hornem.) Sims]

Wrightia pubescens [R.Br.]

Wrightia religiosa [(Teijsm. & Binn.) Benth. ex Kurz]

Wrightia religiosa Double

Wrightia religiosa Variegata

Wulfenia carinthiaca [Jacq.]

Wulfenia schwarzii [Lepper]

Wurmbea stricta [(Burm.f.) J.C.Manning & Vinn.] syn. Dipidax triquetra; syn. Onixotis triquetra

Xantheranthemum igneum [(Regel) Lindau] syn. Chamaeranthemum igneum; syn. Eranthemum igneum

Xanthium strumarium [L.]

Xanthoceras sorbifolium [Bunge]

Xanthocercis zambesiaca [(Baker) Dumaz-le-Grand] syn. Pseudocadia zambesiaca