Colorado

• Adams 08001
  205 taxa Open ↗
• Alamosa 08003
  652 taxa Open ↗
• Arapahoe 08005
  254 taxa Open ↗
• Archuleta 08007
  651 taxa Open ↗
• Baca 08009
  785 taxa Open ↗
• Bent 08011
  267 taxa Open ↗
• Boulder 08013
  1,961 taxa Open ↗
• Broomfield 08014
  0 taxa Open ↗
• Chaffee 08015
  607 taxa Open ↗
• Cheyenne 08017
  694 taxa Open ↗

Showing 2,101–2,150 of 3,643 (native).

• 
  Lysimachia hybrida Michx. Native LYHY

  lowland yellow loosestrife · Primulaceae 1 county
• 
  Lysimachia thyrsiflora L. Native LYTH2

  tufted loosestrife · Primulaceae 1 county
• 
  Lythrum alatum Pursh Native LYAL4

  winged lythrum · Lythraceae 3 counties
• 
  Lythrum alatum Pursh var. alatum Native LYALA4

  winged lythrum · Lythraceae 3 counties
• 
  Machaeranthera bigelovii (A. Gray) Greene Native MABI

  Bigelow's tansyaster · Asteraceae 22 counties
• 
  Machaeranthera bigelovii (A. Gray) Greene var. bigelovii Native MABIB

  Bigelow's tansyaster · Asteraceae 19 counties
• 
  Machaeranthera bigelovii (A. Gray) Greene var. commixta (Greene) B.L. Turner Native MABIC

  Bigelow's tansyaster · Asteraceae 2 counties
• 
  Machaeranthera canescens (Pursh) A. Gray Native MACA2

  hoary tansyaster · Asteraceae 38 counties
• 
  Machaeranthera canescens (Pursh) A. Gray ssp. canescens Native MACAC

  hoary tansyaster · Asteraceae 1 county
• 
  Machaeranthera canescens (Pursh) A. Gray ssp. canescens var. ambigua B.L. Turner Native MACAA

  hoary tansyaster · Asteraceae 1 county
• 
  Machaeranthera canescens (Pursh) A. Gray ssp. glabra (A. Gray) B.L. Turner Native MACAG

  hoary tansyaster · Asteraceae 10 counties
• 
  Machaeranthera canescens (Pursh) A. Gray ssp. glabra (A. Gray) B.L. Turner var. aristata (Eastw.) B.L. Turner Native MACAA2

  hoary tansyaster · Asteraceae 1 county
• 
  Machaeranthera canescens (Pursh) A. Gray ssp. glabra (A. Gray) B.L. Turner var. glabra A. Gray Native MACAG2

  hoary tansyaster · Asteraceae 10 counties
• 
  Machaeranthera coloradoensis (A. Gray) Osterh. Native MACO13

  Colorado tansyaster · Asteraceae 9 counties
• 
  Machaeranthera coloradoensis (A. Gray) Osterh. var. coloradoensis Native MACOC

  Colorado tansyaster · Asteraceae 8 counties
• 
  Machaeranthera gracilis (Nutt.) Shinners Native MAGR10

  slender goldenweed · Asteraceae 5 counties
• 
  Machaeranthera grindelioides (Nutt.) Shinners Native MAGR2

  rayless tansyaster · Asteraceae 12 counties
• 
  Machaeranthera grindelioides (Nutt.) Shinners var. grindelioides Native MAGRG

  rayless tansyaster · Asteraceae 12 counties
• 
  Machaeranthera parviflora A. Gray Native MAPA

  smallflower tansyaster · Asteraceae 4 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners Native MAPI

  lacy tansyaster · Asteraceae 36 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. gooddingii (A. Nelson) B.L. Turner & R.L. Hartm. Native MAPIG

  Goodding's tansyaster · Asteraceae 3 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. gooddingii (A. Nelson) B.L. Turner & R.L. Hartm. var. paradoxa B.L. Turner & R.L. Hartm. Native MAPIP3

  Goodding's tansyaster · Asteraceae 3 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida Native MAPIP

  lacy tansyaster · Asteraceae 35 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida var. glaberrima (Rydb.) B.L. Turner & R.L. Hartm. Native MAPIG3

  lacy tansyaster · Asteraceae 4 counties
• 
  Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida var. pinnatifida Native MAPIP4

  lacy tansyaster · Asteraceae 34 counties
• 
  Machaeranthera tanacetifolia (Kunth) Nees Native MATA2

  tanseyleaf tansyaster · Asteraceae 27 counties
• 
  Maclura pomifera (Raf.) C.K. Schneid. Native MAPO

  Osage-orange · Moraceae 4 counties
• 
  Madia glomerata Hook. Native MAGL2

  mountain tarweed · Asteraceae 16 counties
• 
  Mahonia fremontii (Torr.) Fedde Native MAFR3

  Fremont's mahonia · Berberidaceae 3 counties
• 
  Mahonia haematocarpa (Wooton) Fedde Native MAHA4

  red barberry · Berberidaceae 1 county
• 
  Mahonia repens (Lindl.) G. Don Native MARE11

  creeping barberry · Berberidaceae 34 counties
• 
  Maianthemum racemosum (L.) Link Native MARA7

  feathery false lily of the valley · Liliaceae 32 counties
• 
  Maianthemum racemosum (L.) Link ssp. amplexicaule (Nutt.) LaFrankie Native MARAA

  feathery false lily of the valley · Liliaceae 32 counties
• 
  Maianthemum stellatum (L.) Link Native MAST4

  starry false lily of the valley · Liliaceae 43 counties
• 
  Malacothrix fendleri A. Gray Native MAFE

  Fendler's desertdandelion · Asteraceae 1 county
• 
  Malacothrix sonchoides (Nutt.) Torr. & A. Gray Native MASO

  sowthistle desertdandelion · Asteraceae 6 counties
• 
  Malacothrix torreyi A. Gray Native MATO2

  Torrey's desertdandelion · Asteraceae 3 counties
• 
  Malaxis brachypoda (A. Gray) Fernald Native MABR5

  white adder's-mouth orchid · Orchidaceae 2 counties
• 
  Malvella leprosa (Ortega) Krapov. Native MALE3

  alkali mallow · Malvaceae 1 county
• 
  Malvella sagittifolia (A. Gray) Fryxell Native MASA3

  arrowleaf mallow · Malvaceae 1 county
• 
  Marsilea vestita Hook. & Grev. Native MAVE2

  hairy waterclover · Marsileaceae 15 counties
• 
  Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm. Native MAAN9

  roving sailor · Scrophulariaceae 1 county
• 
  Melampodium leucanthum Torr. & A. Gray Native MELE2

  plains blackfoot · Asteraceae 9 counties
• 
  Melica bulbosa Geyer ex Porter & J.M. Coult. Native MEBU

  oniongrass · Poaceae 5 counties
• 
  Melica porteri Scribn. Native MEPO

  Porter's melicgrass · Poaceae 8 counties
• 
  Melica porteri Scribn. var. porteri Native MEPOP5

  Porter's melicgrass · Poaceae 8 counties
• 
  Melica spectabilis Scribn. Native MESP

  purple oniongrass · Poaceae 11 counties
• 
  Melica subulata (Griseb.) Scribn. Native MESU

  Alaska oniongrass · Poaceae 1 county
• 
  Melica subulata (Griseb.) Scribn. var. subulata Native MESUS

  Alaska oniongrass · Poaceae 1 county
• 
  Menodora scabra A. Gray Native MESC

  rough menodora · Oleaceae 3 counties