Index / States / Illinois / Williamson
§1County listing — Illinois
Williamson County
Illinois
- FIPS
- 17199
- Taxa recorded
- 1,210
- State
- Illinois
Filter
Showing 51–100 of 1,210.
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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 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 minima (L.) Krause Native ANMI4chaffweed · Primulaceae -
Andropogon gerardii Vitman Native ANGEbig bluestem · Poaceae -
Andropogon gyrans Ashe Native ANGY2Elliott's bluestem · Poaceae - Andropogon gyrans Ashe var. gyrans Native ANGYGElliott's bluestem · Poaceae
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Andropogon virginicus L. Native ANVI2broomsedge bluestem · Poaceae - Andropogon virginicus L. var. virginicus Native ANVIVbroomsedge bluestem · Poaceae
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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 -
Apios americana Medik. Native APAMgroundnut · Fabaceae -
Aplectrum hyemale (Muhl. ex Willd.) Torr. Native APHYAdam and Eve · Orchidaceae -
Apocynum cannabinum L. Native APCAIndianhemp · Apocynaceae -
Arabidopsis thaliana (L.) Heynh. Introduced ARTHmouseear cress · Brassicaceae -
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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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 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 ramosissima Engelm. ex A. Gray Native ARRA2s-curve threeawn · Poaceae -
Aristolochia serpentaria L. Native ARSE3Virginia snakeroot · Aristolochiaceae -
Arnoglossum atriplicifolium (L.) H. Rob. Native ARATpale Indian plantain · Asteraceae -
Arnoglossum reniforme (Hook.) H. Rob. Native ARRE6great Indian plantain · Asteraceae -
Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl Introduced AREL3tall oatgrass · Poaceae - Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. elatius Introduced ARELEtall oatgrass · Poaceae
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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 hirtella (Pennell) Woodson Native ASHIgreen milkweed · Asclepiadaceae -
Asclepias incarnata L. Native ASINswamp milkweed · Asclepiadaceae - Asclepias incarnata L. ssp. incarnata Native ASINIswamp milkweed · Asclepiadaceae