Madison County

Showing 1–50 of 763.

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  Acalypha gracilens A. Gray Native ACGR2

  slender threeseed mercury · Euphorbiaceae
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  Acalypha monococca (Engelm. ex A. Gray) Lill. W. Mill. & Gandhi Native ACMO4

  slender threeseed mercury · Euphorbiaceae
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  Acalypha rhomboidea Raf. Native ACRH

  common threeseed mercury · Euphorbiaceae
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  Acalypha virginica L. Native ACVI

  Virginia threeseed mercury · Euphorbiaceae
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  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
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  Acer negundo L. var. negundo Native ACNEN

  boxelder · Aceraceae
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  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
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  Aeschynomene indica L. Native AEIN

  Indian jointvetch · Fabaceae
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  Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. Native AGHY

  winter bentgrass · Poaceae
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  Albizia julibrissin Durazz. Introduced ALJU

  silktree · Fabaceae
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  Allium canadense L. Native ALCA3

  meadow garlic · Liliaceae
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  Allium canadense L. var. canadense Native ALCAC

  meadow garlic · Liliaceae
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  Allium canadense L. var. mobilense (Regel) Ownbey Native ALCAM

  meadow garlic · Liliaceae
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  Alopecurus carolinianus Walter Native ALCA4

  Carolina foxtail · Poaceae
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  Alophia drummondii (Graham) R.C. Foster Native ALDR2

  propeller flower · Iridaceae
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  Aloysia gratissima (Gillies & Hook.) Troncoso Native ALGR2

  whitebrush · Verbenaceae
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  Alternanthera philoxeroides (Mart.) Griseb. Introduced ALPH

  alligatorweed · Amaranthaceae
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  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae
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  Amaranthus blitum L. Introduced AMBL2

  purple amaranth · Amaranthaceae
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  Amaranthus palmeri S. Watson Native AMPA

  carelessweed · Amaranthaceae
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  Amaranthus polygonoides L. Native AMPO

  tropical amaranth · Amaranthaceae
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  Amaranthus spinosus L. Native AMSP

  spiny amaranth · Amaranthaceae
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  Amaranthus tuberculatus (Moq.) Sauer Native AMTU

  roughfruit amaranth · Amaranthaceae
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  Ambrosia artemisiifolia L. Both AMAR2

  annual ragweed · Asteraceae
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  Ambrosia psilostachya DC. Native AMPS

  Cuman ragweed · Asteraceae
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  Ambrosia trifida L. Native AMTR

  great ragweed · Asteraceae
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  Amphiachyris dracunculoides (DC.) Nutt. Native AMDR

  prairie broomweed · Asteraceae
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  Anagallis arvensis L. Introduced ANAR

  scarlet pimpernel · Primulaceae
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  Anagallis arvensis L. ssp. arvensis Introduced ANARA7

  scarlet pimpernel · Primulaceae
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  Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. Native ANGL2

  bushy bluestem · Poaceae
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  Andropogon ternarius Michx. Native ANTE2

  splitbeard bluestem · Poaceae
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  Andropogon ternarius Michx. var. ternarius Native ANTET

  splitbeard bluestem · Poaceae
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  Andropogon virginicus L. Native ANVI2

  broomsedge bluestem · Poaceae
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  Andropogon virginicus L. var. virginicus Native ANVIV

  broomsedge bluestem · Poaceae
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  Anemone berlandieri Pritz. Native ANBE

  tenpetal thimbleweed · Ranunculaceae
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  Anemone caroliniana Walter Native ANCA9

  Carolina anemone · Ranunculaceae
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  Aphanostephus skirrhobasis (DC.) Trel. Native APSK

  Arkansas dozedaisy · Asteraceae
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  Aphanostephus skirrhobasis (DC.) Trel. var. skirrhobasis Native APSKS

  Arkansas dozedaisy · Asteraceae
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  Apios americana Medik. Native APAM

  groundnut · Fabaceae
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  Apocynum cannabinum L. Native APCA

  Indianhemp · Apocynaceae
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  Argemone polyanthemos (Fedde) G.B. Ownbey Native ARPO2

  crested pricklypoppy · Papaveraceae
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  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae
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  Aristida purpurea Nutt. var. nealleyi (Vasey) Allred Native ARPUN

  blue threeawn · Poaceae
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  Aristolochia tomentosa Sims Native ARTO3

  woolly dutchman's pipe · Aristolochiaceae
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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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  Arundinaria gigantea (Walter) Muhl. Native ARGI

  giant cane · Poaceae
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  Asclepias oenotheroides Cham. & Schltdl. Native ASOE

  zizotes 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