| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| MYEG2 | Myosurus egglestonii Woot. & Standl. | Myosurus nitidus | Ranunculaceae
|
| MYLE3 | Myosurus lepturus (Gray) T.J. Howell | Myosurus minimus | Ranunculaceae
|
| MYMIA | Myosurus minimus L. ssp. apus (Greene) Campbell p.p. | Myosurus minimus | Ranunculaceae
|
| MYMIA | Myosurus minimus L. ssp. apus (Greene) Campbell p.p. | Myosurus sessilis | Ranunculaceae
|
| MYMIM | Myosurus minimus L. ssp. major (Greene) Campbell | Myosurus minimus | Ranunculaceae
|
| MYMIM2 | Myosurus minimus L. ssp. montanus Campbell | Myosurus apetalus var. montanus | Ranunculaceae
|
| MYMIA7 | Myosurus minimus L. var. apus Greene p.p. | Myosurus minimus | Ranunculaceae
|
| MYMIA7 | Myosurus minimus L. var. apus Greene p.p. | Myosurus sessilis | Ranunculaceae
|
| MYMIA3 | Myosurus minimus L. var. aristatus auct. non (Benth.) Boivin | Myosurus apetalus var. borealis | Ranunculaceae
|
| MYMIC3 | Myosurus minimus L. var. clavicaulis (M.E. Peck) Campbell p.p. | Myosurus minimus | Ranunculaceae
|
| MYMIC3 | Myosurus minimus L. var. clavicaulis (M.E. Peck) Campbell p.p. | Myosurus sessilis | Ranunculaceae
|
| MYMIF2 | Myosurus minimus L. var. filiformis Greene | Myosurus minimus | Ranunculaceae
|
| MYMII | Myosurus minimus L. var. interior Boivin | Myosurus minimus | Ranunculaceae
|
| MYMIL | Myosurus minimus L. var. lepturus Gray | Myosurus minimus | Ranunculaceae
|
| MYMIM7 | Myosurus minimus L. var. major (Greene) K.C. Davis | Myosurus minimus | Ranunculaceae
|
| MYMIS2 | Myosurus minimus L. var. sessiliflorus (Huth) Campbell | Myosurus sessilis | Ranunculaceae
|
| MYMI2 | Myosurus minimus L. | tiny mousetail | Ranunculaceae
|
| MYNI | Myosurus nitidus Eastw. | western mousetail | Ranunculaceae
|
| MYSE2 | Myosurus sessilis S. Wats. | vernal pool mousetail | Ranunculaceae
|
| MYOSU | Myosurus L. | mousetail | Ranunculaceae
|
| MYBE2 | Myrcia berberis DC. | Myrcia fallax | Myrtaceae
|
| MYCIC | Myrcia citrifolia (Aubl.) Urban var. citrifolia | red rodwood | Myrtaceae
|
| MYCII | Myrcia citrifolia (Aubl.) Urban var. imrayana (Griseb.) Stehl� & Quentin | red rodwood | Myrtaceae
|
| MYCI | Myrcia citrifolia (Aubl.) Urban | red rodwood | Myrtaceae
|
| MYDE | Myrcia deflexa (Poir.) DC. | cieneguillo | Myrtaceae
|
| MYFA3 | Myrcia fallax (L.C. Rich.) DC. | curame | Myrtaceae
|
| MYLE | Myrcia leptoclada DC. | guayabacon | Myrtaceae
|
| MYMA4 | Myrcia margarettiae (Alain) Alain | Margarett's myrcia | Myrtaceae
|
| MYMA5 | Myrcia maricaensis Alain | maricao rodwood | Myrtaceae
|
| MYPA | Myrcia paganii Krug & Urban | ausu | Myrtaceae
|
| MYSP | Myrcia splendens (Sw.) DC. | punchberry | Myrtaceae
|
| MYRCI | Myrcia DC. ex Guill. | rodwood | Myrtaceae
|
| MYFA4 | Myrcianthes fajardensis (Krug & Urban) Alain | Myrcianthes fragrans | Myrtaceae
|
| MYFRS | Myrcianthes fragrans (Sw.) McVaugh var. simpsonii (Small) R.W. Long | Myrcianthes fragrans | Myrtaceae
|
| MYFR | Myrcianthes fragrans (Sw.) McVaugh | twinberry | Myrtaceae
|
| MYRCI2 | Myrcianthes Berg | myrcianthes | Myrtaceae
|
| MYBO | Myrciaria borinquena Alain | false tamarisk | Myrtaceae
|
| MYCA9 | Myrciaria cauliflora (C. Martius) O. Berg | jaboticaba | Myrtaceae
|
| MYFL | Myrciaria floribunda (West ex Willd.) Berg | guavaberry | Myrtaceae
|
| MYMY | Myrciaria myrtifolia Alain | ridgetop guavaberry | Myrtaceae
|
| MYRCI3 | Myrciaria Berg | guavaberry | Myrtaceae
|
| MYAST | Myrica aspleniifolia L. var. tomentosa (Chev.) Gleason | Comptonia peregrina | Myricaceae
|
| MYAS | Myrica aspleniifolia L. | Comptonia peregrina | Myricaceae
|
| MYCA13 | Myrica californica Cham. & Schlecht. | Morella californica | Myricaceae
|
| MYCA4 | Myrica caroliniensis P. Mill. | Morella caroliniensis | Myricaceae
|
| MYCEP | Myrica cerifera L. var. pumila Michx. | Morella cerifera | Myricaceae
|
| MYCE | Myrica cerifera L. | Morella cerifera | Myricaceae
|
| MYFA | Myrica faya Ait. | Morella faya | Myricaceae
|
| MYGAS2 | Myrica gale L. var. subarctica Rouss. | Myrica gale | Myricaceae
|
| MYGAS | Myrica gale L. var. subglabra (Chev.) Fern. | Myrica gale | Myricaceae
|
| MYGAT | Myrica gale L. var. tomentosa C. DC. | Myrica gale | Myricaceae
|
| MYGA | Myrica gale L. | sweetgale | Myricaceae
|
| MYHA | Myrica hartwegii S. Wats. | Sierra bayberry | Myricaceae
|
| MYHEC | Myrica heterophylla Raf. var. curtissii (Chev.) Fern. | Morella caroliniensis | Myricaceae
|
| MYHE | Myrica heterophylla Raf. | Morella caroliniensis | Myricaceae
|
| MYHO | Myrica holdridgeana Lundell | Morella holdridgeana | Myricaceae
|
| MYIN | Myrica inodora Bartr. | Morella inodora | Myricaceae
|
| MYMA2 | Myrica �macfarlanei Youngken | Morella macfarlanei | Myricaceae
|
| MYPE7 | Myrica pensylvanica Mirbel | Morella pensylvanica | Myricaceae
|
| MYPE4 | Myrica peregrina (L.) Kuntze | Comptonia peregrina | Myricaceae
|
| MYPU | Myrica pusilla Raf. | Morella cerifera | Myricaceae
|
| MYRIC | Myrica L. | sweetgale | Myricaceae
|
| MYDI4 | Myrinia dieckii Ren. & Card. in R�ll | Scleropodium cespitans var. sublaeve | Brachytheciaceae
|
| MYPU5 | Myrinia pulvinata (Wahlenb.) Schimp. | myrinia moss | Myriniaceae
|
| MYRIN | Myrinia Schimp. | myrinia moss | Myriniaceae
|
| MYAL8 | Myrionora albidula (Willey) R. C. Harris | | Lecanoraceae
|
| MYRIO2 | Myrionora R. C. Harris | myrionora | Lecanoraceae
|
| MYALA | Myriophyllum alterniflorum DC. var. americanum Pugsley | Myriophyllum alterniflorum | Haloragaceae
|
| MYAL3 | Myriophyllum alterniflorum DC. | alternateflower watermilfoil | Haloragaceae
|
| MYAQ2 | Myriophyllum aquaticum (Vell.) Verdc. | parrot feather watermilfoil | Haloragaceae
|
| MYBR | Myriophyllum brasiliense Camb. | Myriophyllum aquaticum | Haloragaceae
|
| MYEL | Myriophyllum elatinoides Gaud. | Myriophyllum quitense | Haloragaceae
|
| MYEXM | Myriophyllum exalbescens Fern. var. magdalenense (Fern.) A. L�ve | Myriophyllum sibiricum | Haloragaceae
|
| MYEX | Myriophyllum exalbescens Fern. | Myriophyllum sibiricum | Haloragaceae
|
| MYFA2 | Myriophyllum farwellii Morong | Farwell's watermilfoil | Haloragaceae
|
| MYHE2 | Myriophyllum heterophyllum Michx. | twoleaf watermilfoil | Haloragaceae
|
| MYHI | Myriophyllum hippuroides Nutt. ex Torr. & Gray | western watermilfoil | Haloragaceae
|
| MYHU | Myriophyllum humile (Raf.) Morong | low watermilfoil | Haloragaceae
|
| MYLA2 | Myriophyllum laxum Shuttlw. ex Chapman | loose watermilfoil | Haloragaceae
|
| MYMA6 | Myriophyllum magdalenense Fern. | Myriophyllum sibiricum | Haloragaceae
|
| MYPI | Myriophyllum pinnatum (Walt.) B.S.P. | cutleaf watermilfoil | Haloragaceae
|
| MYPR2 | Myriophyllum proserpinacoides Gillies ex Hook. & Arn. | Myriophyllum aquaticum | Haloragaceae
|
| MYQU | Myriophyllum quitense Kunth | Andean watermilfoil | Haloragaceae
|
| MYSC3 | Myriophyllum scabratum Michx. | Myriophyllum pinnatum | Haloragaceae
|
| MYSI | Myriophyllum sibiricum Komarov | shortspike watermilfoil | Haloragaceae
|
| MYSPE2 | Myriophyllum spicatum L. ssp. exalbescens (Fern.) Hult�n | Myriophyllum sibiricum | Haloragaceae
|
| MYSPS | Myriophyllum spicatum L. ssp. squamosum Laestad. ex Hartman | Myriophyllum sibiricum | Haloragaceae
|
| MYSPC | Myriophyllum spicatum L. var. capillaceum Lange | Myriophyllum sibiricum | Haloragaceae
|
| MYSPE | Myriophyllum spicatum L. var. exalbescens (Fern.) Jepson | Myriophyllum sibiricum | Haloragaceae
|
| MYSPS2 | Myriophyllum spicatum L. var. squamosum (Laestad. ex Hartman) Hartman | Myriophyllum sibiricum | Haloragaceae
|
| MYSP2 | Myriophyllum spicatum L. | spike watermilfoil | Haloragaceae
|
| MYTE | Myriophyllum tenellum Bigelow | slender watermilfoil | Haloragaceae
|
| MYVEC | Myriophyllum verticillatum L. var. cheneyi Fassett | Myriophyllum pinnatum | Haloragaceae
|
| MYVEI | Myriophyllum verticillatum L. var. intermedium W.D.J. Koch | Myriophyllum verticillatum | Haloragaceae
|
| MYVEP | Myriophyllum verticillatum L. var. pectinatum Wallr. | Myriophyllum verticillatum | Haloragaceae
|
| MYVEP2 | Myriophyllum verticillatum L. var. pinnatifidum Wallr. | Myriophyllum verticillatum | Haloragaceae
|
| MYVE3 | Myriophyllum verticillatum L. | whorl-leaf watermilfoil | Haloragaceae
|
| MYRIO | Myriophyllum L. | watermilfoil | Haloragaceae
|
| MYPO | Myriopus poliochros (Spreng.) Small | Tournefortia volubilis | Boraginaceae
|
| MYVO | Myriopus volubilis (L.) Small | Tournefortia volubilis | Boraginaceae
|
| MYBA4 | Myriotrema bahianum (Ach.) Hale | | Thelotremataceae
|