Index / States / Illinois / St. Clair
§1County listing — Illinois
St. Clair County
Illinois
- FIPS
- 17163
- Taxa recorded
- 1,648
- State
- Illinois
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Showing 101–150 of 1,648.
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Arabis laevigata (Muhl. ex Willd.) Poir. Native ARLAsmooth rockcress · Brassicaceae - Arabis laevigata (Muhl. ex Willd.) Poir. var. laevigata Native ARLALsmooth rockcress · Brassicaceae
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Arabis shortii (Fernald) Gleason Native ARSH2Short's rockcress · Brassicaceae -
Aralia racemosa L. Native ARRAAmerican spikenard · Araliaceae - Aralia racemosa L. ssp. racemosa Native ARRARAmerican spikenard · Araliaceae
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Aralia spinosa L. Native ARSP2devil's walkingstick · Araliaceae -
Arctium minus Bernh. Introduced ARMI2lesser burdock · Asteraceae -
Arenaria serpyllifolia L. Introduced ARSE2thymeleaf sandwort · Caryophyllaceae -
Arisaema dracontium (L.) Schott Native ARDR3green dragon · Araceae -
Arisaema triphyllum (L.) Schott Native ARTRJack in the pulpit · Araceae - Arisaema triphyllum (L.) Schott ssp. triphyllum Native ARTRT3Jack in the pulpit · Araceae
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Aristida dichotoma Michx. Native ARDI4churchmouse threeawn · Poaceae - Aristida dichotoma Michx. var. curtissii A. Gray Native ARDICCurtis' threeawn · Poaceae
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Aristida longespica Poir. Native ARLO16slimspike threeawn · Poaceae - Aristida longespica Poir. var. longespica Native ARLOL3slimspike threeawn · Poaceae
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Aristida oligantha Michx. Native AROLprairie threeawn · Poaceae -
Aristida purpurascens Poir. Native ARPU8arrowfeather threeawn · Poaceae - Aristida purpurascens Poir. var. purpurascens Native ARPUP4arrowfeather threeawn · Poaceae
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Aristida ramosissima Engelm. ex A. Gray Native ARRA2s-curve threeawn · Poaceae -
Aristolochia serpentaria L. Native ARSE3Virginia snakeroot · Aristolochiaceae -
Aristolochia tomentosa Sims Native ARTO3woolly dutchman's pipe · Aristolochiaceae -
Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4horseradish · Brassicaceae -
Arnoglossum atriplicifolium (L.) H. Rob. Native ARATpale Indian plantain · Asteraceae -
Arnoglossum plantagineum Raf. Native ARPL4groovestem Indian plantain · Asteraceae -
Arnoglossum reniforme (Hook.) H. Rob. Native ARRE6great Indian plantain · Asteraceae -
Aronia melanocarpa (Michx.) Elliott Native ARME6black chokeberry · Rosaceae -
Artemisia annua L. Introduced ARAN3sweet sagewort · Asteraceae -
Artemisia biennis Willd. Both ARBI2biennial wormwood · Asteraceae - Artemisia biennis Willd. var. biennis Introduced ARBIBbiennial wormwood · Asteraceae
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Artemisia ludoviciana Nutt. Both ARLUwhite sagebrush · Asteraceae - Artemisia ludoviciana Nutt. ssp. ludoviciana Native ARLUL2white sagebrush · Asteraceae
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Aruncus dioicus (Walter) Fernald Both ARDI8bride's feathers · Rosaceae -
Arundinaria gigantea (Walter) Muhl. Native ARGIgiant cane · Poaceae -
Asarum canadense L. Native ASCACanadian wildginger · Aristolochiaceae -
Asclepias amplexicaulis Sm. Native ASAMclasping milkweed · Asclepiadaceae -
Asclepias exaltata L. Native ASEXpoke milkweed · Asclepiadaceae -
Asclepias hirtella (Pennell) Woodson Native ASHIgreen milkweed · Asclepiadaceae -
Asclepias incarnata L. Native ASINswamp milkweed · Asclepiadaceae - Asclepias incarnata L. ssp. incarnata Native ASINIswamp milkweed · Asclepiadaceae
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Asclepias purpurascens L. Native ASPU2purple milkweed · Asclepiadaceae -
Asclepias quadrifolia Jacq. Native ASQUfourleaf milkweed · Asclepiadaceae -
Asclepias sullivantii Engelm. ex A. Gray Native ASSU3prairie milkweed · Asclepiadaceae -
Asclepias syriaca L. Native ASSYcommon milkweed · Asclepiadaceae -
Asclepias tuberosa L. Native ASTUbutterfly milkweed · Asclepiadaceae - Asclepias tuberosa L. ssp. interior Woodson Native ASTUIbutterfly milkweed · Asclepiadaceae
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Asclepias variegata L. Native ASVAredring milkweed · Asclepiadaceae -
Asclepias verticillata L. Native ASVEwhorled milkweed · Asclepiadaceae -
Asclepias viridiflora Raf. Native ASVIgreen comet milkweed · Asclepiadaceae -
Asclepias viridis Walter Native ASVI2green antelopehorn · Asclepiadaceae -
Asimina triloba (L.) Dunal Native ASTRpawpaw · Annonaceae