New since Flora of Victoria naturalised status uncertain  Zaleya galericulata (Melville) H. Eichler, Suppl. J.M. Black's Fl. South Australia edn 2, 136 (1965) subsp. australis (Melville) S.W.L. Jacobs, Telopea 3:139 (1988) AIZOACEAE
  *  Zaluzianskya divaricata (Thunb.) Walp., Repert. Bot. Syst. 3:308 (1844) SCROPHULARIACEAE
  *  Zantedeschia aethiopica (L.) Spreng., Syst. Veg. 3:765 (1826) ARACEAE
  New since Flora of Victoria incipiently naturalised  Zephyranthes candida (Lindl.) Herb., Bot. Mag. 53:t.2607 (1826) LILIACEAE
    Zieria arborescens Sims, Bot. Mag. t.1395 (1811) subsp. arborescens RUTACEAE
  v  Zieria aspalathoides A. Cunn. ex Benth., Fl. Austral. 1:305 (1863) subsp. aspalathoides RUTACEAE
  Vv New since Flora of Victoria  Zieria citriodora J.A. Armstr., Austral. Syst. Bot. 15:330 (2002) RUTACEAE
  r  Zieria cytisoides Sm. in Rees, Cycl. 39 (1818) RUTACEAE
  v New since Flora of Victoria  Zieria littoralis J.A. Armstr., Austral. Syst. Bot. 15:389 (2002) RUTACEAE
  Rr New since Flora of Victoria endemic to Victoria  Zieria oreocena J.A. Armstr., Austral. Syst. Bot. 15:414 (2002) RUTACEAE
  r  Zieria robusta Maiden & Betche, Proc. Linn. Soc. New South Wales 35:788 (1911) RUTACEAE
  r  Zieria smithii Jacks. in Andrews, Bot. Repos. 9:t.606 (1810) subsp. smithii RUTACEAE
  New since Flora of Victoria endemic to Victoria  Zieria sp. 1 sensu Fl. Victoria 4:165 (1999) = Zieria oreocena RUTACEAE
  New since Flora of Victoria  Zieria sp. 2 sensu Fl. Victoria 4:166 (1999) = Zieria citriodora RUTACEAE
  New since Flora of Victoria  Zieria sp. 3 sensu Fl. Victoria 4:168 (1999) = Zieria littoralis RUTACEAE
  r  Zieria veronicea (F. Muell.) Benth., Fl. Austral. 1:305 (1863) subsp. veronicea RUTACEAE
  New since Flora of Victoria  Zostera capricorni Asch. = Zostera muelleri subsp. capricorni ZOSTERACEAE
  k New since Flora of Victoria  Zostera muelleri Irmisch ex Asch. subsp. capricorni (Asch.) S.W.L. Jacobs, Telopea 11:128 (2006) ZOSTERACEAE
  New since Flora of Victoria  Zostera muelleri Irmisch ex Asch., Linnaea 35:168 (1867) subsp. muelleri ZOSTERACEAE
    Zostera tasmanica G. Martens ex Asch. = Heterozostera tasmanica ZOSTERACEAE
  New since Flora of Victoria  Zoysia macrantha Desv., Opusc. Sci. Phys. Nat. 54 (1831) subsp. macrantha POACEAE
  r New since Flora of Victoria  Zoysia macrantha Desv. subsp. walshii M.E. Nightingale, Fl. Australia 43:376 (2002) POACEAE
  New since Flora of Victoria  Zoysia matrella sensu J.H. Willis, Handb. Pl. Victoria 1:154 (1970) = Zoysia macrantha subsp. walshii POACEAE
    Zygophyllum ammophilum F. Muell., Fragm. 11:28 (1878) ZYGOPHYLLACEAE
  r  Zygophyllum angustifolium H. Eichler, Telopea 4:13 (1990) ZYGOPHYLLACEAE
    Zygophyllum apiculatum F. Muell., Linnaea 25:373 (1853) ZYGOPHYLLACEAE
    Zygophyllum aurantiacum (Lindl.) F. Muell., Linnaea 25:376 (1853) subsp. aurantiacum ZYGOPHYLLACEAE
    Zygophyllum aurantiacum (Lindl.) F. Muell. var. eremaeum (Diels) H. Eichler = Zygophyllum eremaeum ZYGOPHYLLACEAE
  r  Zygophyllum billardierei DC., Prodr. 1:705 (1824) ZYGOPHYLLACEAE
  v  Zygophyllum compressum J.M. Black, Trans. & Proc. Roy. Soc. South Australia 48:256 (1924) ZYGOPHYLLACEAE
    Zygophyllum crenatum F. Muell., Linnaea 25:374 (1853) ZYGOPHYLLACEAE
    Zygophyllum eremaeum (Diels) Ostenf., Biol. Meddel. Kongel. Danske Vidensk. Selsk. 3,2:76, fig.11b (1921) ZYGOPHYLLACEAE
    Zygophyllum glaucum F. Muell., Trans. & Proc. Victorian Inst. Advancem. Sci. 1:29 (1855) ZYGOPHYLLACEAE
    Zygophyllum iodocarpum F. Muell., Linnaea 25:372 (1853) ZYGOPHYLLACEAE
    Zygophyllum ovatum Ewart & Jean White, J. & Proc. Roy. Soc. New South Wales 42:197, t.36 (1908) ZYGOPHYLLACEAE
  a New since Flora of Victoria*  Zygophyllum sessilifolium L., Sp. Pl. 1:385 (1753) ZYGOPHYLLACEAE
  r  Zygophyllum simile H. Eichler, Telopea 4:15 (1990) ZYGOPHYLLACEAE