Linn County

Showing 51–100 of 895.

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  Anemone virginiana L. var. virginiana Native ANVIV2

  tall thimbleweed · Ranunculaceae
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  Antennaria neglecta Greene Native ANNE

  field pussytoes · Asteraceae
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  Antennaria parlinii Fernald Native ANPA9

  Parlin's pussytoes · Asteraceae
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  Antennaria parlinii Fernald ssp. fallax (Greene) Bayer & Stebbins Native ANPAF

  Parlin's pussytoes · Asteraceae
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  Anthemis cotula L. Introduced ANCO2

  stinking chamomile · Asteraceae
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  Aplectrum hyemale (Muhl. ex Willd.) Torr. Native APHY

  Adam and Eve · Orchidaceae
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  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
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  Aquilegia canadensis L. Native AQCA

  red columbine · Ranunculaceae
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  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
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  Arenaria serpyllifolia L. Introduced ARSE2

  thymeleaf sandwort · Caryophyllaceae
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  Argyrochosma dealbata (Pursh) Windham Native ARDE5

  powdery false cloak fern · Pteridaceae
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  Arisaema dracontium (L.) Schott Native ARDR3

  green dragon · Araceae
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  Arisaema triphyllum (L.) Schott Native ARTR

  Jack in the pulpit · Araceae
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  Arisaema triphyllum (L.) Schott ssp. triphyllum Native ARTRT3

  Jack in the pulpit · Araceae
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  Aristida oligantha Michx. Native AROL

  prairie threeawn · Poaceae
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  Aristolochia tomentosa Sims Native ARTO3

  woolly dutchman's pipe · Aristolochiaceae
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  Arnoglossum atriplicifolium (L.) H. Rob. Native ARAT

  pale Indian plantain · Asteraceae
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  Arnoglossum plantagineum Raf. Native ARPL4

  groovestem Indian plantain · Asteraceae
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  Artemisia ludoviciana Nutt. Both ARLU

  white sagebrush · Asteraceae
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  Artemisia ludoviciana Nutt. ssp. ludoviciana Native ARLUL2

  white sagebrush · Asteraceae
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  Artemisia ludoviciana Nutt. ssp. mexicana (Willd. ex Spreng.) D.D. Keck Native ARLUM2

  white sagebrush · Asteraceae
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  Asclepias hirtella (Pennell) Woodson Native ASHI

  green milkweed · Asclepiadaceae
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  Asclepias incarnata L. Native ASIN

  swamp milkweed · Asclepiadaceae
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  Asclepias incarnata L. ssp. incarnata Native ASINI

  swamp milkweed · Asclepiadaceae
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  Asclepias purpurascens L. Native ASPU2

  purple milkweed · Asclepiadaceae
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  Asclepias stenophylla A. Gray Native ASST

  slimleaf milkweed · Asclepiadaceae
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  Asclepias sullivantii Engelm. ex A. Gray Native ASSU3

  prairie milkweed · Asclepiadaceae
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  Asclepias syriaca L. Native ASSY

  common milkweed · Asclepiadaceae
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  Asclepias tuberosa L. Native ASTU

  butterfly milkweed · Asclepiadaceae
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  Asclepias tuberosa L. ssp. interior Woodson Native ASTUI

  butterfly milkweed · Asclepiadaceae
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  Asclepias verticillata L. Native ASVE

  whorled milkweed · Asclepiadaceae
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  Asclepias viridiflora Raf. Native ASVI

  green comet milkweed · Asclepiadaceae
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  Asclepias viridis Walter Native ASVI2

  green antelopehorn · Asclepiadaceae
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  Asimina triloba (L.) Dunal Native ASTR

  pawpaw · Annonaceae
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  Asparagus officinalis L. Introduced ASOF

  garden asparagus · Liliaceae
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  Asplenium rhizophyllum L. Native ASRH2

  walking fern · Aspleniaceae
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  Astragalus canadensis L. Native ASCA11

  Canadian milkvetch · Fabaceae
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  Astragalus canadensis L. var. canadensis Native ASCAC6

  Canadian milkvetch · Fabaceae
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  Astragalus distortus Torr. & A. Gray Native ASDI4

  Ozark milkvetch · Fabaceae
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  Astragalus distortus Torr. & A. Gray var. distortus Native ASDID3

  Ozark milkvetch · Fabaceae
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  Azolla microphylla Kaulf. Native AZMI

  Mexican Mosquito Fern · Azollaceae
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  Bacopa rotundifolia (Michx.) Wettst. Native BARO

  disk waterhyssop · Scrophulariaceae
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  Baptisia alba (L.) Vent. Native BAAL

  white wild indigo · Fabaceae
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  Baptisia alba (L.) Vent. var. macrophylla (Larisey) Isely Native BAALM

  largeleaf wild indigo · Fabaceae
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  Baptisia australis (L.) R. Br. Native BAAU

  blue wild indigo · Fabaceae
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  Baptisia australis (L.) R. Br. var. minor (Lehm.) Fernald Native BAAUM

  blue wild indigo · Fabaceae
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  Baptisia bracteata Muhl. ex Elliott Native BABR2

  longbract wild indigo · Fabaceae
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  Baptisia bracteata Muhl. ex Elliott var. leucophaea (Nutt.) Kartesz & Gandhi Native BABRL2

  longbract wild indigo · Fabaceae
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  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae
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  Bidens aristosa (Michx.) Britton Native BIAR

  bearded beggarticks · Asteraceae