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Jabbers  Bromus diandrus (*)
Jacksonia, Broom-like  Jacksonia scoparia
Jam Tarts  Melichrus procumbens
Japanese Honeysuckle   Lonicera japonica (*)
Jasmine Morinda  Gynochthodes jasminoides
Jericho Wiregrass  Aristida jerichoensis var. jerichoensis
Jericho Wiregrass  Aristida jerichoensis var. subspinulifera
Jo-jo  Soliva sessilis (*)
Jo-jo, Dwarf  Soliva anthemifolia (*)
Johnson Grass  Sorghum halepense (*)
Johnson's Grass Tree  Xanthorrhoea johnsonii
Joint-leaf Rush, Alpine   Juncus sandwithii
Jointed Rush  Juncus articulatus (*)
Jointed Twig-rush  Baumea articulata
Juniper Wattle  Acacia ulicifolia