 | Botanical: Macadamia integrifolia Common: Macadamia Nut Family: Proteaceae |
 | Botanical: Macadamia jansenii Common: Bulburin Nut Tree Family: Proteaceae |
 | Botanical: Macadamia ternifolia Common: Maroochy Nut Family: Proteaceae |
 | Botanical: Macadamia tetraphylla Common: Queensland Nut Family: Proteaceae |
 | Botanical: Macaranga tanarius Common: Macaranga Family: Euphorbiaceae |
 | Botanical: Macfadyena unguis-cati Common: Cat's Claw Creeper Family: Bignoniaceae |
 | Botanical: Mackinlaya macrosciadia Common: Mackinlaya Family: Araliaceae |
 | Botanical: Maclura cochinchinensis Common: Cockspur Thorn Family: Moraceae |
 | Botanical: Macropteranthes fitzalanii Common: Northern Bonewood Family: Combretaceae |
 | Botanical: Macropteranthes leichhardtii Common: Bonewood Family: Combretaceae |
 | Botanical: Macropteranthes leiocaulis Common: Southern Bonewood Family: Combretaceae |
 | Botanical: Macrozamia douglasii Common: Great Sandy Zamia Family: Zamiaceae |
 | Botanical: Macrozamia mountperriensis Common: Mt Perry Zamia Family: Zamiaceae |
 | Botanical: Mallotus claoxyloides Common: Green Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus discolor Common: White Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus ficifolius Common: Fig-leaved Mallotus Family: Euphorbiaceae |
 | Botanical: Mallotus megadontus Common: Toothed Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus mollissimus Common: Soft Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus philippensis Common: Red Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus polyadenos Common: Kamala Family: Euphorbiaceae |
 | Botanical: Mallotus repandus Common: Climbing Mallotus Family: Euphorbiaceae |
 | Botanical: Marsdenia flavescens Common: Hairy Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia fraseri Common: Narrow-leaved Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia glandulifera Common: Fraser Island Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia hemiptera Common: Rusty Vine Family: Apocynaceae |
 | Botanical: Marsdenia lloydii Common: Corky Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia longiloba Common: Slender Marsdenia Family: Apocynaceae |
 | Botanical: Marsdenia micradenia Common: Little Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia microlepis Common: Northern Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia pleiadenia Common: Downy Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia rostrata Common: Common Milk Vine Family: Apocynaceae |
 | Botanical: Marsdenia suaveolens Common: Scented Marsdenia Family: Apocynaceae |
 | Botanical: Marsdenia viridiflora ssp. viridiflora Common: Native Pear Family: Apocynaceae |
 | Botanical: Maytenus bilocularis Common: Orangebark Family: Celastraceae |
 | Botanical: Maytenus disperma Common: Orange Boxwood Family: Celastraceae |
 | Botanical: Maytenus silvestris Common: Narrow-leaved Orangebark Family: Celastraceae |
 | Botanical: Medicosma cunninghamii Common: Medicosma Family: Rutaceae |
 | Botanical: Medicosma sp. Mt Mellum Common: Mt Mellum Medicosma Family: Rutaceae |
 | Botanical: Meiogyne stenopetala ssp. stenopetala Common: Fissistigma Family: Annonaceae |
 | Botanical: Melaleuca bracteata Common: River Teatree Family: Myrtaceae |
 | Botanical: Melaleuca dealbata Common: White-leaved Paperbark Family: Myrtaceae |
 | Botanical: Melaleuca quinquenervia Common: Broad-leaved Paperbark Family: Myrtaceae |
 | Botanical: Melaleuca saligna Common: White Bottlebrush, Sweet Willow Bottlebrush Family: Myrtaceae |
 | Botanical: Melaleuca styphelioides Common: Prickly-leaved Teatree Family: Myrtaceae |
 | Botanical: Melastoma malabathricum ssp. malabathricum Common: Blue Tongue, Native Lasiandra Family: Melastomataceae |
 | Botanical: Melia azedarach Common: White Cedar Family: Meliaceae |
 | Botanical: Melicope elleryana Common: Pink Euodia Family: Rutaceae |
 | Botanical: Melicope hayesii Common: Small-leaved Euodia Family: Rutaceae |
 | Botanical: Melicope micrococca Common: White Euodia Family: |
 | Botanical: Melicope vitiflora Common: Northern Euodia Family: Rutaceae |
 | Botanical: Melodinus acutiflorus Common: Hairy Melodinus Family: Apocynaceae |
 | Botanical: Melodinus australis Common: Southern Melodinus Family: Apocynaceae |
 | Botanical: Melodorum leichhardtii Common: Zig-zag Vine Family: Annonaceae |
 | Botanical: Memecylon pauciflorum var. pauciflorum Common: Memecylon, Poor-flower Tree Family: Melastomataceae |
 | Botanical: Micromelum minutum Common: Cluster Berry Family: Rutaceae |
 | Botanical: Mischarytera lautereriana Common: Corduroy Tamarind Family: Sapindaceae |
 | Botanical: Mischocarpus anodontus Common: Pear-fruited Tamarind Family: Sapindaceae |
 | Botanical: Mischocarpus australis Common: Red Pear-fruit Family: Sapindaceae |
 | Botanical: Mischocarpus lachnocarpus Common: Woolly Pear-fruit Family: Sapindaceae |
 | Botanical: Mischocarpus pyriformis ssp. pyriformis Common: Yellow Pear-fruit Family: Sapindaceae |
 | Botanical: Monococcus echinophorus Common: Monococcus Family: Phytolaccaceae |
 | Botanical: Monotoca scoparia Common: Prickly Broom Heath Family: Ericaceae |
 | Botanical: Morinda canthoides Common: Veiny Morinda Family: Rubiaceae |
 | Botanical: Morinda jasminoides Common: Morinda Family: Rubiaceae |
 | Botanical: Morinda umbellata Common: Northern Morinda, Vomit Vine Family: Rubiaceae |
 | Botanical: Mucuna gigantea ssp. gigantea Common: Burny Bean Family: Fabaceae |
 | Botanical: Muehlenbeckia gracillima Common: Climbing Lignum, Slender Lignum Family: Polygonaceae |
 | Botanical: Murraya ovatifoliolata Common: Murraya Family: Rutaceae |
 | Botanical: Myoporum acuminatum Common: Mangrove Boobialla Family: Scrophulariaceae / Myoporaceae |
 | Botanical: Myoporum bateae Common: Bates Boobialla Family: Scrophulariaceae / Myoporaceae |
 | Botanical: Myoporum betcheanum Common: Mountain Boobialla Family: Scrophulariaceae / Myoporaceae |
 | Botanical: Myoporum montanum Common: Western Boobialla Family: Scrophulariaceae / Myoporaceae |
 | Botanical: Myrsine arenaria Common: Sand Muttonwood Family: Primulaceae / Myrsinaceae |
 | Botanical: Myrsine howittiana Common: Brush Muttonwood Family: Primulaceae / Myrsinaceae |
 | Botanical: Myrsine ireneae ssp. ireneae Common: Irene's Muttonwood Family: Primulaceae / Flacourtiaceae |
 | Botanical: Myrsine porosa Common: Mt Blackwood Muttonwood Family: Primulaceae / Myrsinaceae |
 | Botanical: Myrsine richmondensis Common: Ripple-leaved Muttonwood, Lismore Muttonwood Family: Primulaceae / Myrsinaceae |
 | Botanical: Myrsine subsessilis ssp. subsessilis Common: Red Muttonwood Family: Primulaceae / Myrsinaceae |
 | Botanical: Myrsine variabilis Common: Variable Muttonwood Family: Primulaceae / Myrsinaceae |