Index / States / Montana / Powder River
§1County listing — Montana
Powder River County
Montana
- FIPS
- 30075
- Taxa recorded
- 431
- State
- Montana
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Showing 1–50 of 431.
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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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Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHYIndian ricegrass · Poaceae -
Acroptilon repens (L.) DC. Introduced ACRE3hardheads · Asteraceae -
Aegilops cylindrica Host Introduced AECYjointed goatgrass · Poaceae -
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 -
Allium textile A. Nelson & J.F. Macbr. Native ALTEtextile onion · Liliaceae -
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 blitoides S. Watson Introduced AMBLmat amaranth · Amaranthaceae -
Amaranthus retroflexus L. Native AMREredroot amaranth · Amaranthaceae -
Ambrosia psilostachya DC. Native AMPSCuman ragweed · Asteraceae -
Ambrosia trifida L. Native AMTRgreat ragweed · Asteraceae - Ambrosia trifida L. var. trifida Native AMTRT2great ragweed · Asteraceae
- Antennaria neglecta Greene Native ANNEfield pussytoes · Asteraceae
- 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 -
Arabidopsis thaliana (L.) Heynh. Introduced ARTHmouseear cress · Brassicaceae -
Arabis holboellii Hornem. Native ARHO2Holboell's rockcress · Brassicaceae -
Arctostaphylos uva-ursi (L.) Spreng. Native ARUVkinnikinnick · Ericaceae -
Argentina anserina (L.) Rydb. Native ARAN7silverweed cinquefoil · Rosaceae -
Aristida purpurea Nutt. Native ARPU9purple threeawn · Poaceae - Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Native ARPULFendler threeawn · Poaceae
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Arnica fulgens Pursh Native ARFU3foothill arnica · Asteraceae -
Artemisia cana Pursh Native ARCA13silver sagebrush · Asteraceae -
Artemisia frigida Willd. Native ARFR4prairie sagewort · Asteraceae -
Artemisia ludoviciana Nutt. Both ARLUwhite sagebrush · Asteraceae -
Artemisia tridentata Nutt. Native ARTR2big sagebrush · Asteraceae -
Asclepias speciosa Torr. Native ASSPshowy milkweed · Asclepiadaceae -
Asclepias viridiflora Raf. Native ASVIgreen comet milkweed · Asclepiadaceae -
Asperugo procumbens L. Introduced ASPRGerman-madwort · Boraginaceae -
Astragalus agrestis Douglas ex G. Don Native ASAG2purple milkvetch · Fabaceae -
Astragalus barrii Barneby Native ASBABarr's milkvetch · Fabaceae -
Astragalus crassicarpus Nutt. Native ASCR2groundplum milkvetch · Fabaceae - Astragalus crassicarpus Nutt. var. crassicarpus Native ASCRC3groundplum milkvetch · Fabaceae
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Astragalus drummondii Douglas ex Hook. Native ASDR3Drummond's milkvetch · Fabaceae -
Astragalus gilviflorus Sheldon Native ASGI5plains milkvetch · Fabaceae - Astragalus gilviflorus Sheldon var. gilviflorus Native ASGIGplains milkvetch · Fabaceae
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Astragalus gracilis Nutt. Native ASGR3slender milkvetch · Fabaceae -
Astragalus hyalinus M.E. Jones Native ASHY2summer milkvetch · Fabaceae -
Astragalus laxmannii Jacq. Native ASLA27Laxmann's milkvetch · Fabaceae - Astragalus laxmannii Jacq. var. robustior (Hook.) Barneby & S.L. Welsh Native ASLARprairie milkvetch · Fabaceae
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Astragalus missouriensis Nutt. Native ASMI10Missouri milkvetch · Fabaceae - Astragalus missouriensis Nutt. var. missouriensis Native ASMIM5Missouri milkvetch · Fabaceae
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Astragalus purshii Douglas ex Hook. Native ASPU9woollypod milkvetch · Fabaceae