Index / States / Illinois / St. Clair
§1County listing — Illinois
St. Clair County
Illinois
- FIPS
- 17163
- Taxa recorded
- 1,648
- State
- Illinois
Filter
Showing 51–100 of 1,648.
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Allium vineale L. Introduced ALVIwild garlic · Liliaceae - Allium vineale L. ssp. vineale Introduced ALVIVwild garlic · Liliaceae
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Alnus serrulata (Aiton) Willd. Native ALSE2hazel alder · Betulaceae -
Alopecurus aequalis Sobol. Native ALAEshortawn foxtail · Poaceae - Alopecurus aequalis Sobol. var. aequalis Native ALAEAshortawn foxtail · Poaceae
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Alopecurus carolinianus Walter Native ALCA4Carolina foxtail · Poaceae -
Alyssum alyssoides (L.) L. Introduced ALAL3pale madwort · Brassicaceae -
Amaranthus blitoides S. Watson Introduced AMBLmat amaranth · Amaranthaceae -
Amaranthus cruentus L. Introduced AMCR4red amaranth · Amaranthaceae - Amaranthus hybridus L. Native AMHYslim amaranth · Amaranthaceae
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Amaranthus palmeri S. Watson Native AMPAcarelessweed · Amaranthaceae -
Amaranthus retroflexus L. Native AMREredroot amaranth · Amaranthaceae -
Amaranthus spinosus L. Native AMSPspiny amaranth · Amaranthaceae -
Amaranthus tuberculatus (Moq.) Sauer Native AMTUroughfruit amaranth · Amaranthaceae -
Ambrosia artemisiifolia L. Both AMAR2annual ragweed · Asteraceae -
Ambrosia bidentata Michx. Native AMBI2lanceleaf ragweed · Asteraceae -
Ambrosia psilostachya DC. Native AMPSCuman ragweed · Asteraceae -
Ambrosia trifida L. Native AMTRgreat ragweed · Asteraceae -
Amelanchier arborea (Michx. f.) Fernald Native AMAR3common serviceberry · Rosaceae - Amelanchier arborea (Michx. f.) Fernald var. arborea Native AMARA4common serviceberry · Rosaceae
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Ammannia coccinea Rottb. Native AMCOvalley redstem · Lythraceae -
Amorpha canescens Pursh Native AMCA6leadplant · Fabaceae -
Amorpha fruticosa L. Native AMFRfalse indigo bush · Fabaceae -
Ampelopsis cordata Michx. Native AMCO2heartleaf peppervine · Vitaceae -
Amphicarpaea bracteata (L.) Fernald Native AMBR2American hogpeanut · Fabaceae - Amphicarpaea bracteata (L.) Fernald var. comosa Native AMBRCAmerican hogpeanut · Fabaceae
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Amsonia tabernaemontana Walter Native AMTA2eastern bluestar · Apocynaceae -
Anagallis arvensis L. Introduced ANARscarlet pimpernel · Primulaceae - Anagallis arvensis L. ssp. arvensis Introduced ANARA7scarlet pimpernel · Primulaceae
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Anagallis minima (L.) Krause Native ANMI4chaffweed · Primulaceae -
Andropogon gerardii Vitman Native ANGEbig bluestem · Poaceae -
Andropogon virginicus L. Native ANVI2broomsedge bluestem · Poaceae - Andropogon virginicus L. var. virginicus Native ANVIVbroomsedge bluestem · Poaceae
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Androsace occidentalis Pursh Native ANOC2western rockjasmine · Primulaceae -
Anemone canadensis L. Native ANCA8Canadian anemone · Ranunculaceae -
Anemone cylindrica A. Gray Native ANCYcandle anemone · Ranunculaceae -
Anemone virginiana L. Native ANVI3tall thimbleweed · Ranunculaceae - Anemone virginiana L. var. virginiana Native ANVIV2tall thimbleweed · Ranunculaceae
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Angelica venenosa (Greenway) Fernald Native ANVEhairy angelica · Apiaceae - Antennaria neglecta Greene Native ANNEfield pussytoes · Asteraceae
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Antennaria plantaginifolia (L.) Richardson Native ANPLwoman's tobacco · Asteraceae -
Anthemis cotula L. Introduced ANCO2stinking chamomile · Asteraceae -
Apios americana Medik. Native APAMgroundnut · Fabaceae -
Aplectrum hyemale (Muhl. ex Willd.) Torr. Native APHYAdam and Eve · Orchidaceae -
Apocynum androsaemifolium L. Native APAN2spreading dogbane · Apocynaceae -
Apocynum cannabinum L. Native APCAIndianhemp · Apocynaceae -
Aquilegia canadensis L. Native AQCAred columbine · Ranunculaceae -
Arabis canadensis L. Native ARCAsicklepod · Brassicaceae -
Arabis hirsuta (L.) Scop. Native ARHIhairy rockcress · Brassicaceae - Arabis hirsuta (L.) Scop. var. pycnocarpa (M. Hopkins) Rollins Native ARHIPcreamflower rockcress · Brassicaceae