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- Waterhousea floribunda (F.Muell.) B.Hyland
- Waterhousea hedraiophylla (F.Muell.) B.Hyland
- Wedelia spilanthoides F.Muell.
- Wehlia coarctata F.Muell.
- Wehlia staminosa F.Muell.
- Wehlia thryptomenoides F.Muell.
- Welchiodendron longivalve (F.Muell.) Peter G.Wilson & J.T.Waterh.
- Wendlandia basistaminea F.Muell.
- Wendlandia psychotrioides (F.Muell.) F.Muell.
- Westringia cephalantha F.Muell.
- Westringia senifolia F.Muell.
- Whiteochloa semitonsa (F.Muell. ex Benth.) C.E.Hubb.
- Wilkiea wardellii (F.Muell.) Perkins
- Wittsteinia vacciniacea F.Muell.
- Woollsia pungens (Cav.) F.Muell.
- Wrightia saligna (R.Br.) F.Muell. ex Benth.
- Wrixonia prostantheroides F.Muell.
- Wurmbea dioica (R.Br.) F.Muell.
Read more about this topic: List Of Australian Plant Species Authored By Ferdinand Von Mueller