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Ice Plant, Small-flowered  Chloanthes parviflora
Indian Pennywort  Centella asiatica
Indian Weed  Sigesbeckia orientalis
Indigo Plant  Swainsona galegifolia
Indigo, Austral  Lotus australis
Indigo, Australian  Indigofera australis subsp. australis
Indigo, Leafless  Indigofera adesmiifolia
Indigo, Native  Indigofera australis subsp. australis
Indigo, New Holland  Indigofera australis subsp. australis
Indigo, Tick  Indigofera adesmiifolia
Inkweed  Phytolacca octandra (*)
Iris, Swamp  Patersonia fragilis
Iris, Wild  Patersonia glabrata
Ironbark, Caley's  Eucalyptus caleyi subsp. caleyi
Ironbark, Red  Eucalyptus sideroxylon subsp. sideroxylon
Irongrass  Lomandra leucocephala subsp. leucocephala
Irongum, Grey  Eucalyptus biturbinata
Ironweed  Cyanthillium cinereum
Island Daisy  Lagenophora stipitata
Isotoma, Narrow-leaved  Isotoma anethifolia
Isotoma, Swamp  Isotoma fluviatilis subsp. borealis
Ivy Goodenia  Goodenia hederacea subsp. hederacea
Ivy-leaved Goodenia  Goodenia hederacea subsp. hederacea
Ivy-leaved Violet  Viola hederacea
Ivy, Five-leaved  Parthenocissus quinquefolia (*)