Illinois Flora | Department Plant Biology | SIU

Illinois Flora

Flora of the Southern Illinois Floristic Regions

1. Acer rubrum (red maple) photos
2. Acorus calamus (sweet flag) photos
3. Carex frankii (Frank's sedge) photos
4. Carex grayi (Gray's sedge) photos
5. Celtis laevigata (sugarberry) photos
6. Cephalanthus occidentalis (buttonbush)  photos
7. Cuscuta gronovii (dodder) photos
8. Decodon verticillatus (water willow) photos
9. Hibiscus lasiocarpos (swamp mallow) photos
10. Itea virginica (Virginia willow) photos
11. Justicia americana (water willow) photos
12. Lemna minor (duckweed) photos
13. Limnobium spongia (sponge plant) photos
14. Lobelia cardinalis (cardinal flower) photos
15. Nyssa aquatica (tupelo) photos
16. Rosa palustris (swamp rose) photos
17. Sparganium androcladum (bur-reed) photos
18. Taxodium distichum (bald cypress) photos

1. Acer saccharinum (silver maple) photos
2. Agastache nepetoides (giant hyssop) photos
3. Arisaema dracontium (green dragon) photos
4. Aristolochia tomentosa (Dutchman's pipe-vine) photos
5. Asclepias perennis (swamp milkweed) photos
6. Bignonia capreolata (cross-vine) photos
7. Boehmeria cylindrica (false nettle) photos
8. Campsis radicans (Virginia creeper) photos
9. Carya illinoinensis (pecan) photos
10. Dichanthelium boscii (panic grass) photos
11. Eragrostis spectabilis (tumble-grass) photos
12. Frasera caroliniensis (columbo) photos
13. Gleditsia triacanthos (honey locust) photos
14. Hydrophyllum macrophyllum (large leaf waterleaf) photos
15. Hypericum mutilum (dwarf St. John's-wort) photos
16. Lindera benzoin (spicebush) photos
17. Lindernia dubia (false pimpernel) photos
18. Lysimachia ciliata (fringed loosestrife) photos
19. Menispermum canadense (moonseed) photos
20. Mimulus alatus (winged monkey flower) photos
21. Morus rubra (red mulberry) photos
22. Penthorum sedoides (ditch stonecrop) photos
23. Phoradendron leucarpum (mistletoe) photos
24. Pilea pumila (clearweed) photos
25. Platanus occidentalis (sycamore) photos
26. Populus deltoides (cottonwood) photos
27. Quercus falcata var. pagodaefolia) (cherrybark oak) photos
28. Quercus palustris (pin oak) photos
29. Ranunuculus septentrionalis (swamp buttercup) photos
30. Saururus cernuus (lizard tail) photos
31. Silene regia (royal catchfly) photos
32. Smallanthus uvedalia (bear's foot, yellow leafcup) photos
33. Smilax hispida (greenbriar) photos
34. Spigelia marilandica (Indian Pink) photos
35. Toxicodendron radicans (poison ivy) photos

1. Anemone [Hepatica] americana (liver-leaf) photos
2. Aplectrum hyemale (puttyroot orchid) photos
3. Asimina triloba (pawpaw) photos
4. Collinsia verna (blue-eyed Mary) photos
5. Corallorhiza wisteriana (coral-root orchid) photos
6. Dicentra cucullaria (Dutchman's breeches) photos
7. Dodecatheon frenchii / meadia (shooting-star) photos
8. Erythronium americanum (trout lily) photos
9. Goodyera pubescens (rattlesnake orchid) photos
10. Lindera benzoin (spicebush) photos
11. Mitchella repens (partridge berry) photos
12. Mitella diphylla (bishop's cap) photos
13. Sanguinaria canadensis (bloodroot) photos
14. Saxifraga forbesii (Forbes' saxifrage) photos
15. Stylophorum diphyllum (celandine poppy) photos
16. Staphylea trifolia (bladdernut)  photos
17. Thalictrum thalictroides (rue anemone) photos
18. Trillium recurvatum (trillium, wake robin) photos

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Seepages

1. Allium canadense (wild onion) photos
2. Alisma subcordatum (water plantain) photos
3. Carex crinita (sedge) photos
4. Carex frankii (Frank's sedge) photos
5. Chelone glabra (turtlehead) photos
6. Eleocharis acicularis (spike rush) photos
7. Houstonia pusilla (small bluets) photos
8. Iris fulva (swamp red iris) photos
9. Isoetes butleri (quillwort) photos
10. Ludwigia alternifolia (seedbox) photos
11. Sagittaria latifolia (arrowhead) photos

1. Amaranthus arenicola (Torey's amaranth) photos
2. Ammannia coccinea (long-leaved ammania) photos
3. Bidens aristosa (swamp marigold, tickseed sunflower) photos
4. Chamaesyce maculata (milk spurge) photos
5. Commelina communis (common day flower) photos
6. Convolvulus sepium (American bindweed) photos
7. Echinochloa crus-gali (barnyard grass) photos
8. Eclipta prostrata (yerba de tajo) photos
9. Euphorbia corollata (flowering spurge) photos
10. Fallopia convolvulus (black bindweed) photos
11. Lapsana communis (nipplewort) photos
12. Lindernia dubia (false pimpernel) photos
13. Lobelia siphilitica (blue cardinal-flower) photos
14. Myosotis arvensis (field scorpion grass) photos
15. Penthorum sedoides (ditch stonecrop) photos
16. Physalis angulata (ground cherry) photos
17. Ranunculus acris (tall buttercup) photos
18. Rorippa sylvestris (creeping yellowcress) photos
19. Rotala ramosior (tooth-cup) photos
20. Rumex crispus (curly dock) photos
21. Scutellaria lateriflora (mad-dog skullcap) photos
22. Trifolium pratense (red clover) photos
23. Valerianella radiata (corn salad) photos
24. Verbesina alternifolia (yellow ironweed) photos
25. Vicia sativa (common vetch) photos

1. Antennaria plantaginifolia (pussy-toes) photos
2. Aquilegia canadensis (columbine) photos
3. Asclepias meadii (Mead's milkweed) photos
4. Chasmanthium latifolium (sea oats) photos
5. Cheilanthes lanosa [C. vestida] (wooly lip-fern) photos
6. Cunila origanoides (dittany) photos
7. Danthonia spicata (poverty oat grass) photos
8. Heuchera micrantha (alumroot) photos
9. Hypericum hypericoides (St. Andrew's cross) photos
10. Juniperus virginiana (red cedar) photos
11. Krigia biflora (false dandelion) photos
12. Lespedeza hirta (hairy bush clover) photos
13. Liatris cylindracea (blazing star) photos
14. Manfreda virginica (American aloe) photos
15. Nothoscordum bivalve (false wild garlic) photos
16. Opuntia humifusa (prickly pear cactus) photos
17. Phlox bifida (cleft phlox) photos
18. Polytrichum commune (hairy cap moss, often found with Cladina rangiferina, a lichen) photos
19. Sedum pulchellum (widow's cross) photos
20. Stylosanthes biflora (pencil flower) photos
21. Ulmus alata (winged elm) photos
22. Vaccinium arboreum (farkleberry) photos
23. Vaccinium pallidum (low-bush blueberry) photos
24. Woodsia obtusa (woods fern) photos

1. Asplenium rhizophyllum (walking-fern)  photos
2. Asplenium pinnatifidum (spleenwort)  photos
3. Conacephalum conicum (a liverwort)  photos
4. Dennstaedtia punctilobula (hay-scented fern)  photos
5. Huperzia lucidula (shining clubmoss)  photos
6. Polypodium virginianum (Virginia polypody)  photos
7. Osmunda regalis (royal fern)  photos
8. Pellia epiphylla (a liverwort)  photos

1. Aristolochia tomentosa (Dutchman's pipe-vine)  photos
2. Bignonia capreolata (cross-vine)  photos
3. Calycocarpum lyonii (cupseed) photos
4. Campsis radicans (Virginia creeper)  photos
5. Celtis pumila (dwarf hackberry)  photos
6. Cystopteris bulbifera (bulblet bladder-fern)  photos
7. Cocculus carolinus (snail-seed)  photos
8. Fraxinus quadrangulata (blue ash)  photos
9. Pellaea atropurpurea (cliff-brake)  photos
10. Rhamnus caroliniana (buckthorn)  photos
11. Sicyos angulatus (bur cucumber)  photos

1. Andropogon gerardii (big bluestem, turkey foot)  photos
2. Apocynum cannabinum (Indian hemp)  photos
3. Solidago speciosa (goldenrod) [with Aster novae-angliae]  photos
4. Sorghastrum nutans (Indian grass)  photos

1. Anemone virginiana (tall anemone)  photos
2. Asclepias tuberosa (butterfly weed)  photos
3. Bouteloua curtipendula (side-oats grama)  photos
4. Chamaecrista fasciculata (partridge pea)  photos
5. Dalea purpurea (purple prairie clover)  photos
6. Elymus hystrix (bottlebrush grass)  photos
7. Echinacea pallida (pale coneflower) photos 
8. Fragaria virginiana (wild strawberry)  photos
9. Glandularia [Verbena] canadensis (wild vervain)  photos
10. Liatris cylindracea (blazing star)  photos
11. Quercus stellata (post oak)  photos
12. Sisyrinchium angustifolium (blue-eyed grass)  photos
13. Physostegia virginiana (false dragonhead) photos 
14. Rhus copallinum (dwarf sumac)  photos
15. Rhus glabra (smooth sumac)  photos
16. Rudbeckia hirta (black-eyed Susan)  photos
17. Ruellia humilis (wild petunia)  photos
18. Tradescantia virginiana (spiderwort)  photos
19. Verbesina alternifolia (yellow ironweed)  photos

1. Acer saccharum (sugar maple)  photos
2. Carpinus caroliniana (blue beech, ironwood)  photos
3. Carya ovata (shagbark hickory)  photos
4. Carya cordiformis (bitternut hickory)  photos
5. Carya glabra (pignut hickory)  photos
6. Celtis occidentalis (hackberry)  photos
7. Diospyros virginiana (persimmon)  photos
8. Fagus grandifolia (beech)  photos
9. Juglans nigra (black walnut)  photos
10. Liriodendron tulipifera (tulip poplar)  photos
11. Nyssa sylvatica (black gum)  photos
12. Ostrya virginiana (hop hornbeam)  photos
13. Prunus serotina (black cherry)  photos
14. Quercus alba (white oak)  photos
15. Quercus velutina (black oak)  photos
16. Quercus macrocarpa (overcup oak)  photos
17. Quercus muehlenbergii (yellow chestnut oak)  photos
18. Sassafras albidum (sassafras)  photos
19. Tilia americana (American basswood)  photos
20. Ulmus americana (American elm)  photos
21. Ulmus rubra (slippery elm)  photos

1. Corylus americana (hazelnut)  photos
2. Hydrangea arborescens (wild hydrangea)  photos
3. Rhus aromatica (fragrant sumac)  photos
4. Sambucus nigra (elderberry)  photos
5. Viburnum rufidulum (southern black haw, rusty nannyberry) photos

1. Adiantum pedatum (maidenhair fern)  photos
2. Athyrium filix-femina (lady fern)  photos
3. Botrychium virginianum (rattlesnake fern) photos 
4. Botrychium dissectum var. obliquum (grape fern)  photos
5. Carex davisii (sedge)  photos
6. Circaea lutetiana (enchanter's nightshade)  photos
7. Cynoglossum officinale (common hound's-tongue)  photos
8. Epifagus virginiana (beechdrops)  photos
9. Geranium maculatum (wild geranium)  photos
10. Liparis liliifolia (orchid)  photos
11. Maianthemum racemosum (false Solomon's seal)  photos
12. Monarda bradburiana (beebalm)  photos
13. Monotropa uniflora (Indian pipe)  photos
14. Polystichum acrostichoides (Christmas fern)  photos
15. Phryma leptostachya (lopseed)  photos
16. Ranunculus recurvatus (recurved buttercup)  photos
17. Triosteum angustifolium (yellow flowered horse gentian)  photos

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