Index / States / Montana / Big Horn
§1County listing — Montana
Big Horn County
Montana
- FIPS
- 30003
- Taxa recorded
- 565
- State
- Montana
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Showing 1–50 of 565.
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Abutilon theophrasti Medik. Introduced ABTHvelvetleaf · Malvaceae -
Acer glabrum Torr. Native ACGLRocky Mountain maple · Aceraceae -
Acer negundo L. Native ACNE2boxelder · Aceraceae -
Achillea millefolium L. Both ACMI2common yarrow · Asteraceae - Achillea millefolium L. var. occidentalis DC. Native ACMIOwestern yarrow · Asteraceae
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Acroptilon repens (L.) DC. Introduced ACRE3hardheads · Asteraceae -
Aegilops cylindrica Host Introduced AECYjointed goatgrass · Poaceae -
Agastache urticifolia (Benth.) Kuntze Native AGURnettleleaf giant hyssop · Lamiaceae - Agastache urticifolia (Benth.) Kuntze var. urticifolia Native AGURUnettleleaf giant hyssop · Lamiaceae
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Agoseris glauca (Pursh) Raf. Native AGGLpale agoseris · Asteraceae -
Agrimonia striata Michx. Native AGSTroadside agrimony · Rosaceae -
Agropyron cristatum (L.) Gaertn. Introduced AGCRcrested wheatgrass · Poaceae - Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8crested wheatgrass · Poaceae
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Agrostis stolonifera L. Introduced AGST2creeping bentgrass · Poaceae -
Alisma triviale Pursh Native ALTR7northern water plantain · Alismataceae -
Allium cernuum Roth Native ALCE2nodding onion · Liliaceae -
Allium textile A. Nelson & J.F. Macbr. Native ALTEtextile onion · Liliaceae -
Alopecurus pratensis L. Introduced ALPR3meadow foxtail · Poaceae -
Alyssum alyssoides (L.) L. Introduced ALAL3pale madwort · Brassicaceae -
Alyssum desertorum Stapf Introduced ALDEdesert madwort · Brassicaceae - Alyssum desertorum Stapf var. desertorum Introduced ALDEDdesert madwort · Brassicaceae
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Amaranthus albus L. Introduced AMALprostrate pigweed · Amaranthaceae -
Amaranthus blitoides S. Watson Introduced AMBLmat amaranth · Amaranthaceae -
Amaranthus retroflexus L. Native AMREredroot amaranth · Amaranthaceae -
Ambrosia artemisiifolia L. Both AMAR2annual ragweed · Asteraceae - Ambrosia artemisiifolia L. var. elatior (L.) Descourtils Introduced AMAREannual ragweed · Asteraceae
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Ambrosia psilostachya DC. Native AMPSCuman ragweed · Asteraceae -
Ambrosia trifida L. Native AMTRgreat ragweed · Asteraceae - Ambrosia trifida L. var. trifida Native AMTRT2great ragweed · Asteraceae
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Andropogon gerardii Vitman Native ANGEbig bluestem · Poaceae -
Angelica arguta Nutt. Native ANAR3Lyall's angelica · Apiaceae - Antennaria parvifolia Nutt. Native ANPA4small-leaf pussytoes · Asteraceae
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Antennaria rosea Greene Native ANRO2rosy pussytoes · Asteraceae -
Apocynum androsaemifolium L. Native APAN2spreading dogbane · Apocynaceae -
Apocynum cannabinum L. Native APCAIndianhemp · Apocynaceae - Apocynum ×floribundum Greene (pro sp.) [androsaemifolium × cannabinum] Native APFLApocynaceae
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Arabidopsis thaliana (L.) Heynh. Introduced ARTHmouseear cress · Brassicaceae -
Arabis drummondii A. Gray Native ARDRDrummond's rockcress · Brassicaceae - Arabis fructicosa A. Nelson Native ARFR5fruit rockcress · Brassicaceae
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Arabis glabra (L.) Bernh. Native ARGLtower rockcress · Brassicaceae -
Arabis nuttallii B.L. Rob. Native ARNUNuttall's rockcress · Brassicaceae -
Arctium minus Bernh. Introduced ARMI2lesser burdock · Asteraceae -
Arenaria congesta Nutt. Native ARCO5ballhead sandwort · Caryophyllaceae -
Arenaria hookeri Nutt. Native ARHO4Hooker's sandwort · Caryophyllaceae - Arenaria hookeri Nutt. ssp. hookeri Native ARHOH3Hooker's sandwort · Caryophyllaceae
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Argentina anserina (L.) Rydb. Native ARAN7silverweed cinquefoil · Rosaceae -
Arnica sororia Greene Native ARSO2twin arnica · Asteraceae -
Artemisia absinthium L. Introduced ARAB3absinthium · Asteraceae -
Artemisia arbuscula Nutt. Native ARAR8little sagebrush · Asteraceae -
Artemisia cana Pursh Native ARCA13silver sagebrush · Asteraceae