X
- Xanthophyllum octandrum (F.Muell.) Domin
- Xanthorrhoea macronema F.Muell. ex Benth.
- Xanthorrhoea quadrangulata F.Muell.
- Xanthorrhoea semiplana F.Muell.
- Xanthosia atkinsoniana F.Muell.
- Xanthosia leiophylla F.Muell. ex Klatt
- Xanthosia singuliflora F.Muell.
- Xanthostemon chrysanthus (F.Muell.) Benth.
- Xanthostemon eucalyptoides F.Muell.
- Xanthostemon paradoxus F.Muell.
- Xylomelum scottianum (F.Muell.) F.Muell.
- Xylopia maccreai (F.Muell.) L.S.Sm.
- Xyris gracillima F.Muell.
- Xyris laxiflora F.Muell.
Read more about this topic: List Of Australian Plant Species Authored By Ferdinand Von Mueller