Summit County

Showing 101–150 of 1,457.

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  Arceuthobium americanum Nutt. ex Engelm. Native ARAM

  American dwarf mistletoe · Viscaceae
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  Arceuthobium douglasii Engelm. Native ARDO

  Douglas-fir dwarf mistletoe · Viscaceae
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  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
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  Arctostaphylos patula Greene Native ARPA6

  greenleaf manzanita · Ericaceae
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  Arctostaphylos uva-ursi (L.) Spreng. Native ARUV

  kinnikinnick · Ericaceae
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  Arenaria congesta Nutt. Native ARCO5

  ballhead sandwort · Caryophyllaceae
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  Arenaria congesta Nutt. var. congesta Native ARCOC4

  ballhead sandwort · Caryophyllaceae
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  Arenaria hookeri Nutt. Native ARHO4

  Hooker's sandwort · Caryophyllaceae
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  Arenaria hookeri Nutt. ssp. desertorum (Maguire) W.A. Weber Native ARHOD

  Hooker's desert sandwort · Caryophyllaceae
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  Argentina anserina (L.) Rydb. Native ARAN7

  silverweed cinquefoil · Rosaceae
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  Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4

  horseradish · Brassicaceae
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  Arnica chamissonis Less. Native ARCH3

  Chamisso arnica · Asteraceae
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  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire Native ARCHF

  Chamisso arnica · Asteraceae
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  Arnica cordifolia Hook. Native ARCO9

  heartleaf arnica · Asteraceae
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  Arnica latifolia Bong. Native ARLA8

  broadleaf arnica · Asteraceae
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  Arnica longifolia D.C. Eaton Native ARLO6

  spearleaf arnica · Asteraceae
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  Arnica mollis Hook. Native ARMO4

  hairy arnica · Asteraceae
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  Arnica parryi A. Gray Native ARPA13

  Parry's arnica · Asteraceae
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  Arnica parryi A. Gray ssp. parryi Native ARPAP3

  Parry's arnica · Asteraceae
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  Arnica rydbergii Greene Native ARRY

  Rydberg's arnica · Asteraceae
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  Arnica ×diversifolia Greene (pro sp.) [amplexicaulis or mollis × cordifolia or latifolia] Native ARDI7

  rayless arnica · Asteraceae
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  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl Introduced AREL3

  tall oatgrass · Poaceae
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  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. elatius Introduced ARELE

  tall oatgrass · Poaceae
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  Artemisia arbuscula Nutt. Native ARAR8

  little sagebrush · Asteraceae
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  Artemisia arbuscula Nutt. ssp. longiloba (Osterh.) L.M. Shultz Native ARARL

  little sagebrush · Asteraceae
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  Artemisia arctica Less. Native ARAR9

  boreal sagebrush · Asteraceae
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  Artemisia arctica Less. ssp. arctica Native ARARA2

  boreal sagebrush · Asteraceae
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  Artemisia cana Pursh Native ARCA13

  silver sagebrush · Asteraceae
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  Artemisia frigida Willd. Native ARFR4

  prairie sagewort · Asteraceae
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  Artemisia ludoviciana Nutt. Both ARLU

  white sagebrush · Asteraceae
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  Artemisia ludoviciana Nutt. ssp. incompta (Nutt.) D.D. Keck Native ARLUI2

  white sagebrush · Asteraceae
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  Artemisia michauxiana Besser Native ARMI4

  Michaux's wormwood · Asteraceae
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  Artemisia nova A. Nelson Native ARNO4

  black sagebrush · Asteraceae
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  Artemisia scopulorum A. Gray Native ARSC

  alpine sagebrush · Asteraceae
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  Artemisia tridentata Nutt. Native ARTR2

  big sagebrush · Asteraceae
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  Artemisia tridentata Nutt. ssp. spiciformis (Osterh.) Kartesz & Gandhi Native ARTRS2

  big sagebrush · Asteraceae
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  Artemisia tridentata Nutt. ssp. tridentata Native ARTRT

  basin big sagebrush · Asteraceae
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  Artemisia tridentata Nutt. ssp. vaseyana (Rydb.) Beetle Native ARTRV

  mountain big sagebrush · Asteraceae
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  Asclepias speciosa Torr. Native ASSP

  showy milkweed · Asclepiadaceae
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  Asperugo procumbens L. Introduced ASPR

  German-madwort · Boraginaceae
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  Astragalus agrestis Douglas ex G. Don Native ASAG2

  purple milkvetch · Fabaceae
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  Astragalus amphioxys A. Gray Native ASAM5

  Crescent milkvetch · Fabaceae
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  Astragalus argophyllus Nutt. Native ASAR4

  silverleaf milkvetch · Fabaceae
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  Astragalus argophyllus Nutt. var. argophyllus Native ASARA

  silverleaf milkvetch · Fabaceae
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  Astragalus argophyllus Nutt. var. martinii M.E. Jones Native ASARM

  silverleaf milkvetch · Fabaceae
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  Astragalus canadensis L. Native ASCA11

  Canadian milkvetch · Fabaceae
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  Astragalus canadensis L. var. brevidens (Gandog.) Barneby Native ASCAB

  shorttooth Canadian milkvetch · Fabaceae
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  Astragalus cibarius Sheldon Native ASCI2

  browse milkvetch · Fabaceae
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  Astragalus cicer L. Introduced ASCI4

  chickpea milkvetch · Fabaceae
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  Astragalus convallarius Greene Native ASCO12

  lesser rushy milkvetch · Fabaceae