| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| MAFR3 | Mahonia fremontii (Torr.) Fedde | Fremont's mahonia | Berberidaceae
|
| MAHA4 | Mahonia haematocarpa (Woot.) Fedde | red barberry | Berberidaceae
|
| MAHI2 | Mahonia higginsiae (Munz) Ahrendt | Mahonia fremontii | Berberidaceae
|
| MALO8 | Mahonia lomariifolia Takeda | Chinese hollygrape | Berberidaceae
|
| MANEM | Mahonia nervosa (Pursh) Nutt. var. mendocinensis (J.B. Roof) J.B. Roof | Mahonia nervosa | Berberidaceae
|
| MANE2 | Mahonia nervosa (Pursh) Nutt. | Cascade barberry | Berberidaceae
|
| MANE3 | Mahonia nevinii (Gray) Fedde | Nevin's barberry | Berberidaceae
|
| MAPII | Mahonia pinnata (Lag.) Fedde ssp. insularis (Munz) J.B. Roof | island barberry | Berberidaceae
|
| MAPIP2 | Mahonia pinnata (Lag.) Fedde ssp. pinnata | California barberry | Berberidaceae
|
| MAPI2 | Mahonia pinnata (Lag.) Fedde | wavyleaf barberry | Berberidaceae
|
| MAPI3 | Mahonia piperiana Abrams | Mahonia aquifolium | Berberidaceae
|
| MAPU4 | Mahonia pumila (Greene) Fedde | Mahonia repens | Berberidaceae
|
| MARE11 | Mahonia repens (Lindl.) G. Don | creeping barberry | Berberidaceae
|
| MASI13 | Mahonia siamensis Takeda | Siam hollygrape | Berberidaceae
|
| MASO5 | Mahonia sonnei Abrams | Mahonia repens | Berberidaceae
|
| MASW | Mahonia swaseyi (Buckl. ex Young) Fedde | Texas barberry | Berberidaceae
|
| MATRG2 | Mahonia trifoliolata (Moric.) Fedde var. glauca I.M. Johnston | Mahonia trifoliolata | Berberidaceae
|
| MATR3 | Mahonia trifoliolata (Moric.) Fedde | algerita | Berberidaceae
|
| MAHON | Mahonia Nutt. | barberry | Berberidaceae
|
| MAAM6 | Maianthemum amplexicaule (Nutt.) W.A. Weber | Maianthemum racemosum ssp. amplexicaule | Liliaceae
|
| MABIK2 | Maianthemum bifolium (L.) F.W. Schmidt ssp. kamtschaticum (J.F. Gmel. ex Cham.) E. Murr. | Maianthemum dilatatum | Liliaceae
|
| MABIK | Maianthemum bifolium (L.) F.W. Schmidt var. kamtschaticum (J.F. Gmel. ex Cham.) Trautv. & C.A. Mey. | Maianthemum dilatatum | Liliaceae
|
| MACAI | Maianthemum canadense Desf. var. interius Fern. | Maianthemum canadense | Liliaceae
|
| MACAP | Maianthemum canadense Desf. var. pubescens Gates & Ehlers | Maianthemum canadense | Liliaceae
|
| MACA4 | Maianthemum canadense Desf. | Canada mayflower | Liliaceae
|
| MADI | Maianthemum dilatatum (Wood) A. Nels. & J.F. Macbr. | false lily of the vally | Liliaceae
|
| MAKA | Maianthemum kamtschaticum (J.F. Gmel. ex Cham.) Nakai | Maianthemum dilatatum | Liliaceae
|
| MARAA | Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie | feathery false lily of the vally | Liliaceae
|
| MARAR | Maianthemum racemosum (L.) Link ssp. racemosum | feathery false lily of the vally | Liliaceae
|
| MARAA2 | Maianthemum racemosum (L.) Link var. amplexicaule (Nutt.) Dorn | Maianthemum racemosum ssp. amplexicaule | Liliaceae
|
| MARA7 | Maianthemum racemosum (L.) Link | feathery false lily of the vally | Liliaceae
|
| MAST4 | Maianthemum stellatum (L.) Link | starry false lily of the vally | Liliaceae
|
| MATR4 | Maianthemum trifolium (L.) Sloboda | threeleaf false lily of the vally | Liliaceae
|
| MAIAN | Maianthemum G.H. Weber ex Wiggers | mayflower | Liliaceae
|
| MASC4 | Maieta scalpta Vent. | Sagraea scalpta | Melastomataceae
|
| MAAL8 | Mairania alpina (L.) Desv. | Arctostaphylos alpina | Ericaceae
|
| MAHO3 | Majorana hortensis Moench | Origanum majorana | Lamiaceae
|
| MAMA24 | Majorana majorana (L.) Karst. | Origanum majorana | Lamiaceae
|
| MAON | Majorana onites (L.) Benth. | Origanum onites | Lamiaceae
|
| MASC3 | Malache scabra (K. Presl) Kuntze, non B. Vogel | Pavonia paludicola | Malvaceae
|
| MAAQ3 | Malachium aquaticum (L.) Fries | Myosoton aquaticum | Caryophyllaceae
|
| MAPE8 | Malachodendron pentagynum (L'H�r.) Small | Stewartia ovata | Theaceae
|
| MAALF | Malachra alceifolia Jacq. var. fasciata (Jacq.) Robyns | Malachra fasciata | Malvaceae
|
| MAAL4 | Malachra alceifolia Jacq. | yellow leafbract | Malvaceae
|
| MACA5 | Malachra capitata (L.) L. | malva de caballo | Malvaceae
|
| MAFA4 | Malachra fasciata Jacq. | roadside leafbract | Malvaceae
|
| MARA4 | Malachra radiata L. | tropical leafbract | Malvaceae
|
| MAUR | Malachra urens Poit. ex Ledeb. & Alderstam | Malachra fasciata | Malvaceae
|
| MALAC | Malachra L. | leafbract | Malvaceae
|
| MADE5 | Malacomeles denticulata (Kunth) Engelm. | southern false serviceberry | Rosaceae
|
| MALAC4 | Malacomeles (Dcne.) Engelm. | false serviceberry | Rosaceae
|
| MAAB | Malacothamnus abbottii (Eastw.) Kearney | Abbot's bushmallow | Malvaceae
|
| MAAB2 | Malacothamnus aboriginum (B.L. Robins.) Greene | Gray bushmallow | Malvaceae
|
| MAAR | Malacothamnus arcuatus (Greene) Greene | Malacothamnus fasciculatus | Malvaceae
|
| MACL | Malacothamnus clementinus (Munz & Johnston) Kearney | San Clemente Island bushmallow | Malvaceae
|
| MADA | Malacothamnus davidsonii (B.L. Robins.) Greene | Davidson's bushmallow | Malvaceae
|
| MADEV | Malacothamnus densiflorus (S. Wats.) Greene var. viscidus (Abrams) Kearney | Malacothamnus densiflorus | Malvaceae
|
| MADE | Malacothamnus densiflorus (S. Wats.) Greene | yellowstem bushmallow | Malvaceae
|
| MAFAC | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene ssp. catalinensis (Eastw.) Thorne | Malacothamnus fasciculatus | Malvaceae
|
| MAFAL | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene ssp. laxiflorus (Gray) Thorne | Malacothamnus fasciculatus | Malvaceae
|
| MAFAC2 | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene var. catalinensis (Eastw.) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MAFAL2 | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene var. laxiflorus (Gray) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MAFAN | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene var. nesioticus (B.L. Robins.) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MAFAN2 | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene var. nuttallii (Abrams) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MAFA | Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene | Mendocino bushmallow | Malvaceae
|
| MAFO3 | Malacothamnus foliosus (S. Wats.) Kearney | monarch bushmallow | Malvaceae
|
| MAFRC | Malacothamnus fremontii (Torr. ex Gray) Torr. ex Greene ssp. cercophorus (B.L. Robins.) Munz | Malacothamnus fremontii | Malvaceae
|
| MAFR2 | Malacothamnus fremontii (Torr. ex Gray) Torr. ex Greene | Fremon's bushmallow | Malvaceae
|
| MAGR5 | Malacothamnus gracilis (Eastw.) Kearney | Malacothamnus jonesii | Malvaceae
|
| MAHA2 | Malacothamnus hallii (Eastw.) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MAHE | Malacothamnus helleri (Eastw.) Kearney | Malacothamnus fremontii | Malvaceae
|
| MAJO | Malacothamnus jonesii (Munz) Kearney | slender bushmallow | Malvaceae
|
| MAMA3 | Malacothamnus marrubioides (Dur. & Hilg.) Greene | pinkflowered bushmallow | Malvaceae
|
| MAME2 | Malacothamnus mendocinensis (Eastw.) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MANI | Malacothamnus niveus (Eastw.) Kearney | Malacothamnus fremontii | Malvaceae
|
| MAOR2 | Malacothamnus orbiculatus (Greene) Greene | Malacothamnus fremontii | Malvaceae
|
| MAPAI | Malacothamnus palmeri (S. Wats.) Greene var. involucratus (B.L. Robins.) Kearney | Malacothamnus palmeri | Malvaceae
|
| MAPAL | Malacothamnus palmeri (S. Wats.) Greene var. lucianus Kearney | Malacothamnus palmeri | Malvaceae
|
| MAPA2 | Malacothamnus palmeri (S. Wats.) Greene | Palmer's bushmallow | Malvaceae
|
| MAPA17 | Malacothamnus paniculatus (Gray) Kearney | Malacothamnus foliosus | Malvaceae
|
| MAPA3 | Malacothamnus parishii (Eastw.) Kearney | Malacothamnus fasciculatus | Malvaceae
|
| MALAC2 | Malacothamnus Greene | bushmallow | Malvaceae
|
| MAAL12 | Malacothrix altissima Greene | Malacothrix saxatilis var. tenuifolia | Asteraceae
|
| MAAR11 | Malacothrix arachnoidea McGregor | Malacothrix saxatilis var. arachnoidea | Asteraceae
|
| MABL3 | Malacothrix blairii (Munz & Johnston) Munz & Johnston | Stephanomeria blairii | Asteraceae
|
| MACAG3 | Malacothrix californica DC. var. glabrata Gray ex D.C. Eat. | Malacothrix glabrata | Asteraceae
|
| MACA6 | Malacothrix californica DC. | California desertdandelion | Asteraceae
|
| MACLS | Malacothrix clevelandii Gray var. stebbinsii (W.S. Davis & Raven) Cronq. | Malacothrix stebbinsii | Asteraceae
|
| MACL2 | Malacothrix clevelandii Gray | Cleveland's desertdandelion | Asteraceae
|
| MACOC3 | Malacothrix coulteri Harvey & Gray var. cognata Jepson | Malacothrix coulteri | Asteraceae
|
| MACO3 | Malacothrix coulteri Harvey & Gray | snake's head | Asteraceae
|
| MAFE | Malacothrix fendleri Gray | Fendler's desertdandelion | Asteraceae
|
| MAFL | Malacothrix floccifera (DC.) Blake | woolly desertdandelion | Asteraceae
|
| MAFOC | Malacothrix foliosa Gray ssp. crispifolia W.S. Davis | petite desertdandelion | Asteraceae
|
| MAFOF | Malacothrix foliosa Gray ssp. foliosa | leafy desertdandelion | Asteraceae
|
| MAFOP | Malacothrix foliosa Gray ssp. philbrickii W.S. Davis | Philbrick's desertdandelion | Asteraceae
|
| MAFOP2 | Malacothrix foliosa Gray ssp. polycephala W.S. Davis | manyhead desertdandelion | Asteraceae
|
| MAFOI | Malacothrix foliosa Gray var. indecora (Greene) E. Williams | Malacothrix indecora | Asteraceae
|
| MAFOS | Malacothrix foliosa Gray var. squalida (Greene) E. Williams | Malacothrix squalida | Asteraceae
|
| MAFO | Malacothrix foliosa Gray | leafy desertdandelion | Asteraceae
|
| MAGL3 | Malacothrix glabrata (Gray ex D.C. Eat.) Gray | smooth desertdandelion | Asteraceae
|