Illinois Natural History Survey - University of Illinois

List of Vascular Plants Found at the Savanna Army Depot

Kenneth R. Robertson, Loy R. Phillippe, Geoffey A. Levin, and Michael J. Moore

Center for Biodiversity
Illinois Natural History Survey
607 East Peabody Drive
Champaign, IL 61820 USA

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Genera beginning with E - P are given below.

Go to A - D

Go to Q - Z

 


Annotated List of Vascular Plants at the Savanna Army Depot. Arranged alphabetically by scientific name. This list includes only species we observed during 1996, except for Polygala verticillata, which was collected in 1993 and Orobanche fasciculata (Orobanchaceae), which was last collected at the Depot in 1908 although suitable habitat is still extant. Under "Scientific Names", the authorities are omitted for brevity; they are included on the voucher specimens cited in Table 2. Under "E/T", E = State Endangered, T = State Threatened, FCC = former Federal Candidate Category 2, ND = Newly Discovered in Illinois and likely to qualify for listing as a state endangered species.

 

 

   

Scientific Name 

 

Scientific Name 

Common Name  Family  Native or Introduced  Frequency and Habitat  E/T

Echinacea pallida  Pale Coneflower  Asteraceae  native  Only one plant seed in dry-mesic prairie  -- 
Echinochloa crusgalli  Barnyard Grass  Poaceae  introduced  Occasional in developed land and wet-mesic bottomland forest  -- 
Echinochloa muricata  Barnyard-grass  Poaceae  native  Infrequent in wet-mesic floodplain forest  -- 
Echium vulgare  Blueweed  Boraginaceae  introduced  Occasional in developed land  -- 
Eclipta prostrata  Yerba-de-tajo  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Elaeagnus angustifolia  Russian Olive  Elaeagnaceae  introduced  Occasional in sand forest and sand savanna and infrequent in sand prairie  -- 
Eleocharis acicularis  Spikerush  Cyperaceae  native  Occasional in ponds and wet-mesic floodplain forest  -- 
Eleocharis erythropoda  Spike-rush  Cyperaceae  native  Occasional in wet-mesic bottomland forest  -- 
Eleocharis obtusa  Spike Rush  Cyperaceae  native  Occasional in natural sand pond and in wet-mesic bottomland forest  -- 
Ellisia nyctelea  Ellisia  Hydrophyllaceae  native  Occasional in sand forest  -- 
Elodea nuttallii  Free-flowered Water-weed  Hydrocharitaceae  native  Occasional as aquatic in Mississippi River  -- 
Elymus canadensis  Nodding Wild Rye Poaceae  native  Occasional in sand prairie  -- 
Elymus virginicus  Virginia Wild Rye  Poaceae  native  Occasional in wet-mesic bottomland forest  -- 
Epilobium ciliatum  American Willow-herb  Onagraceae  native  Infrequent in wet-mesic floodplain forest  -- 
Equisetum arvense  Common Horsetail Equisetaceae  native  Occasional in wet-mesic floodplain forest  -- 
Equisetum hyemale var.affine  Scouring Rush  Equisetaceae  native  Occasional in developed land and sand prairie  -- 
Equisetum laevigatum  Smooth Scouring Rush  Equisetaceae  native  Occasional in sand prairie and sand savanna  -- 
Equisetum pratense  Meadow Horsetail Equisetaceae  native  Rare in sand forest 
Equisetum x ferrissii  Scouring Rush  Equisetaceae  native  Occasional in sand prairie  -- 
Eragrostis cilianensis  Stink-grass  Poaceae  introduced  Occasional in developed land and infrequent in sand prairie  -- 
Eragrostis hypnoides  Annual Lovegrass  Poaceae  native  Occasional in wet-mesic floodplain forest  -- 
Eragrostis pectinacea  Small Love Grass  Poaceae  native  Occasional in developed land and successional field  -- 
Eragrostis poaeoides  Low Love Grass  Poaceae  introduced  Occasional in developed land  -- 
Eragrostis spectabilis  Tumblegrass  Poaceae  native  Occasional in sand forest, sand prairie, and sand savanna  -- 
Eragrostis trichoides  Sand-lovegrass  Poaceae  native  Infrequent in sand prairie  -- 
Erechtites hieracifolia  Fireweed  Asteraceae  native  Occasional in sand forest, sand savanna, and wet-mesic floodplain forest  -- 
Erigeron annuus  Daisy Fleabane  Asteraceae  native  Occasional in sand forest  -- 
Erigeron philadelphicus  Marsh Fleabane  Asteraceae  native  Occasional in sand forest  -- 
Erigeron strigosus  Daisy Fleabane  Asteraceae  native  Occasional in sand prairie and sand savanna; infrequent in sand forest  -- 
Erysimum inconspicuum  Treacle Mustard  Brassicaceae  introduced  Occasional in developed land, sand prairie and sand savanna  -- 
Euonymus atropurpurea  Wahoo  Celastraceae  native  Occasional in sand forest  -- 
Eupatorium perfoliatum  Common Boneset  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Eupatorium purpureum  Spotted Joe-Pye-weed  Asteraceae  native  Occasional in sand forest border with wet-mesic floodplain forest  -- 
Eupatorium rugosum  White Snakeroot  Asteraceae  native  Occasional in sand forest; infrequent in sand savanna  -- 
Eupatorium serotinum  Late Boneset  Asteraceae  native  Infrequent in pastureland and sand forest  -- 
Euphorbia corollata  Flowering Spurge  Euphorbiaceae  native  Frequent in sand prairie and sand savanna; occasional in sand forest  -- 
Euphorbia dentata  Toothed Spurge  Euphorbiaceae  native  Occasional in developed land; infrequent in sand savanna  -- 
Euphorbia esula  Leafy Spurge  Euphorbiaceae  introduced  Rare in sand prairie  -- 
Festuca elatior  Tall Fescue  Poaceae  introduced  Occasional in developed land  -- 
Festuca obtusa  Nodding Fescue  Poaceae  native  Occasional in sand forest and sand savanna  -- 
Festuca ovina  Slender Fescue  Poaceae  introduced  Infrequent in sand prairie  -- 
Festuca pratensis  Meadow Fescue  Poaceae  introduced  Infrequent in developed land  -- 
Fragaria virginiana  Wild Strawberry  Rosaceae  native  Occasional in sand forest and sand savanna  -- 
Fraxinus pennsylvanica  Green Ash  Oleaceae  native  Frequent in sand forest, sand savanna, and wet-mesic floodplain forest. Infrequent in sand prairie  -- 
Froelichia floridana var.campestris  Cottonweed  Amaranthaceae  native  Occasional in sand prairie and sand savanna  -- 
Froelichia gracilis  Small Cottonweed  Amaranthaceae  introduced  Occasional in successional fields; infrequent in sand prairie and sand savanna  -- 
Galearis spectabilis  Showy Orchis  Orchidaceae  Native  Infrequent in sand forest  -- 
Galium aparine  Goosegrass  Rubiaceae  natve  Occasional in sand forest  -- 
Galium circaezans  Forest-bedstraw  Rubiaceae  native  Occasional in sand forest  -- 
Galium concinnum  Shining Bedstraw  Rubiaceae  native  Occasional in sand forest, sand savanna, and successional field  -- 
Galium triflorum  Sweet-scented Bedstraw  Rubiaceae  native  Occasional in sand forest and wet-mesic floodplain forest  -- 
Gaura longiflora  Gaura  Onagraceae  native  Infrequent in sand savanna and wet-mesic floodplain forest  -- 
Geranium carolinianum  Wild Cranesbill  Geraniaceae  native  Infrequent in sand forest, sand prairie, and sand savanna  -- 
Geranium maculatum  Wild Geranium  Geraniaceae  native  Infrequent in dry upland forest  -- 
Geum canadense  White Avens  Rosaceae  native  Occasional in sand forest  -- 
Geum triflorum  Prairie Smoke  Rosaceae  native  Infrequent in sand prairie  -- 
Gleditsia triacanthos  Honey Locust  Fabaceae  native  Occasional in sand forest, sand prairie, sand savanna, and wet-mesic floodplain forest  -- 
Glyceria striata var.striata  Fowl Manna Grass Poaceae  native  Occasional in wet-mesic floodplain forest  -- 
Gnaphalium obtusifolium  Fragrant Cudweed Asteraceae  native  Occasional in sand prairie and sand savanna  -- 
Gratiola neglecta  Clammy Hedge Hyssop  Scrophulariaceae  native  Infrequent in pond margins and wet-mesic floodplain forest  -- 
Grindelia squarrosa var.squarrosa  Curlycup-gumweed  Asteraceae  native  Infrequent in sand prairie  -- 
Gymnocladus dioicus  Kentucky Coffeetree  Fabaceae  native  Occasional in wet-mesic floodplain forest; Infrequent in sand forest  -- 
Hackelia virginiana  Stickseed  Boraginaceae  native  Occasional in sand forest and sand savanna  -- 
Hedeoma hispida  Rough Pennyroyal  Lamiaceae  native  Frequent in sand prairie and sand savanna  -- 
Helenium autumnale  Common Sneezeweed  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Helianthemum bicknellii  Frostweed  Cistaceae  native  Occasional in sand prairie and sand savanna  -- 
Helianthemum canadense Common Rockrose  Cistaceae  native  Occasional in sand prairie and sand savanna  -- 
Helianthus annuus  Common Sunflower  Asteraceae  introduced  Infrequent in successional fields and sand forest; rare in sand prairie  -- 
Helianthus hirsutus  Hairy Sunflower  Asteraceae  native  Occasional in sand forest  -- 
Helianthus mollis  Ashy Sunflower  Asteraceae  native  Infrequent in sand prairie  -- 
Helianthus occidentalis  Western Sunflower Asteraceae  native  Occasional in sand prairie  -- 
Helianthus rigidus  Stiff Sunflower  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Helianthus tuberosus  Jerusalem-artichoke  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Heliopsis helianthoides  False Sunflower  Asteraceae  native  Infrequent in sand savanna  -- 
Hemerocallis fulva  Daylily  Liliaceae  introduced  Infrequent in disturbed area of sand forest  -- 
Heracleum lanatum  Cow Parsnip  Apiaceae  native  Infrequent in wet-mesic floodplain forest  -- 
Heteranthera dubia  Water Star-grass  Pontederiaceae  native  Occasional aquatic in Mississippi River  -- 
Heterotheca camporum  Golden Aster  Asteraceae  native  Frequent in sand prairie; occasional in sand savanna  -- 
Hibiscus laevis  Smooth Rose-mallow  Malvaceae  native  Occasional in wet-mesic floodplain forest  -- 
Hieracium longipilum  Hairy Hawkweed  Asteraceae  native  Occasional in sand prairie  -- 
Holosteum umbellatum  Jagged Chickweed Caryophyllaceae  introduced  Frequent in developed land and occasional sand prairie  -- 
Hordeum jubatum  Squirrel-tail Grass  Poaceae  introduced?  Occasional in developed land and pastureland  -- 
Hudsonia tomentosa  False Heather  Cistaceae  native  Occasional in sand prairie and sand savanna 
Humulus japonicus  Japanese Hops  Moraceae  introduced  Rare in sand savanna  -- 
Humulus lupulus  Hops  Moraceae  native  Infrequent in sand forest  -- 
Hydrophyllum virginianum  Great Waterleaf  Hydrophyllaceae  native  Occasional in wet-mesic floodplain forest  -- 
Hypericum perforatum  Common St. John's-wort  Clusiaceae  native  Infrequent in sand prairie  -- 
Hypericum punctatum  Spotted St. John's-wort  Clusiaceae  native  Occasional in wet-mesic bottomland forest  -- 
Hypericum sphaerocarpum  Round-fruited St. John's-wort  Clusiaceae  native  Infrequent in sand forest  -- 
Impatiens capensis  Orange Touch-me-not  Balsaminaceae  native  Occasional in wet-mesic floodplain forest  -- 
Impatiens pallida  Pale Touch-me-not  Balsaminaceae  native  Occasional in wet-mesic floodplain forest  -- 
Iris shrevei  Blue Flag  Iridaceae  native  Occasional along oxbow lake and in wet-mesic bottomland forest  -- 
Juglans cinerea  White Walnut  Juglandaceae  native  Occasional in sand forest  -- 
Juglans nigra  Black Walnut  Juglandaceae  native  Frequent in sand forest, sand savanna, and occasional in sand prairie  -- 
Juncus interior  Inland Rush  Juncaceae  native  Occasional in wet-mesic floodplain forest  -- 
Juncus tenuis  Path Rush  Juncaceae  native  Occasional in developed land  -- 
Juniperus virginiana  Red Cedar  Cupressaceae  native  Frequent in sand savanna, occasional in sand forest and sand prairie  -- 
Koeleria macrantha  June Grass  Poaceae  native  Frequent in sand prairie and sand savanna  -- 
Krigia virginica  Dwarf Dandelion  Asteraceae  native  Frequent in sand prairie and sand savanna; occasional in sand forest  -- 
Kummerowia stipulacea  Korean Clover  Fabaceae  intord  Occasional in developed land and successional fields  -- 
Lactuca canadensis  Tall Lettuce  Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Lactuca floridana  Woodland Lettuce Asteraceae  native  Occasional in wet-mesic floodplain forest  -- 
Lactuca serriola  Prickly Lettuce  Asteraceae  introduced  Infrequent in developed land  -- 
Laportea canadensis  Wood Nettle  Urticaceae  native  Frequent in wet-mesic bottomland forest  -- 
Lappula echinata  Beggar's Lice  Boraginaceae  introduced  Infrequent in sand prairie and in pasture  -- 
Lechea pulchella  Pretty Pinweed  Cistaceae  native  Occasional in sand prairie and sand savanna  -- 
Lechea tenuifolia  Slender-leaved Pinweed  Cistaceae  native  Occasional in sand prairie and sand savanna  -- 
Leersia oryzoides  Rice Cut-grass  Poaceae  native  Occasional in wet-mesic floodplain forest  -- 
Leersia virginica  White Grass  Poaceae  native  Frequent in wet-mesic bottomland forest  -- 
Lemna minor  Lesser Duckweed  Lemnaceae  native  Frequent on water of ponds and Mississippi river (aquatic)  -- 
Leonurus cardiaca  Motherwort  Lamiaceae  introduced  Occasional in sand forest and sand savanna  -- 
Lepidium campestre  Field Peppergrass  Brassicaceae  introduced  Occasional to locally frequent in developed land and sand prairie  -- 
Lepidium densiflorum  Small Peppergrass  Brassicaceae  introduced  Frequent in sand prairie and sand savanna  -- 
Lepidium virginicum  Common Peppergrass  Brassicaceae  native  Abundant in sand prairie and sand savanna  -- 
Leptoloma cognatum  Fall Witch Grass  Poaceae  native  Frequent in sand prairie and sand savanna  -- 
Lespedeza capitata  Round-headed Bush-clover  Fabaceae  native  Occasional in sand forest, sand prairie, and sand savanna  -- 
Lespedeza intermedia  Wand-lespedeza  Fabaceae  native  Occasional in sand forest  -- 
Liatris aspera  Rough Blazing-star Asteraceae  native  Locally frequent in sand prairie; occasional in sand savanna; infrequent in sand forest  -- 
Linaria canadensis  Blue Toadflax  Scrophulariaceae  native  Occasional in sand prairie and sand savanna  -- 
Linaria vulgaris  Butter-and-eggs  Scrophulariaceae  introduced  Infrequent in developed land  -- 
Lindernia dubia var.dubia  False Pimpernel  Scrophulariaceae  native  Occasional in wet-mesic floodplain forest  -- 
Linum sulcatum  Yellow Flax  Linaceae  native  Occasional in sand prairie and sand savanna  -- 
Liparis liliifolia  Large Twayblade  Orchidaceae  native  Rare in wet-mesic floodplain forest  -- 
Lithospermum caroliniense  Hairy Puccoon  Boraginaceae  native  Occasional in sand prairie and sand savanna  -- 
Lithospermum incisum  Fringed Puccoon  Boraginaceae  native  Occasional in sand prairie and sand savanna  -- 
Lobelia cardinalis  Cardinal Flower  Campanulaceae  native  Occasional in wet-mesic bottomland forest  -- 
Lobelia inflata  Indian Tobacco  Campanulaceae  native  Infrequent in wet-mesic floodplain forest and sand forest -- 
Lobelia siphilitica  Blue Lobelia  Campanulaceae  native  Occasional in wet-mesic floodplain forest  -- 
Lolium perenne  Perennial Rye Grass  Poaceae  introduced  Occasional in developed land  -- 
Lonicera morrowii  Bush Honeysuckle  Caprifoliaceae  introduced  Occasional in sand forest  -- 
Lonicera tatarica  Tartarian Honeysuckle  Caprifoliaceae  introduced  Occasional in sand forest and sand savanna  -- 
Lycopus americanus  Common Water Horehound  Lamiaceae  native  Occasional in wet-mesic floodplain forest  -- 
Lycopus uniflorus  Northern Water-horehound  Lamiaceae  native  Occasional in wet-mesic bottomland forest  -- 
Lysimachia ciliata  Fringed Loosestrife  Primulaceae  native  Occasional in wet-mesic bottomland forest  -- 
Lythrum salicaria  Purple Loosestrife  Lythraceae  introduced  Rare in open edge of Mississippi River (wet-mesic floodplain forest)  -- 
Malus coronaria  Wild Sweet Crab  Rosaceae  native  Infrequent in sand prairie  -- 
Malus ioensis  Iowa Crab  Rosaceae  native  Occasional in sand forest, sand prairie, and sand savanna  -- 
Malus pumila  Apple  Rosaceae  introduced  Infreauent in dry upland forest and wet-mesic floodplain forest  -- 
Malva neglecta  Common Mallow  Malvaceae  introduced  Infrequent in disturbed wet-mesic floodplain forest  -- 
Matricaria matricarioides Pineapple-weed  Asteraceae  introduced  Infrequent in successional field  -- 
Medicago lupulina  Black Medic  Fabaceae  introduced  Occasional in developed land  -- 
Melilotus alba  White Sweet Clover  Fabaceae  introduced  Occasional in developed land and sand prairie  -- 
Melilotus officinalis  Yellow Sweet Clover  Fabaceae  introduced  Frequent in successional field, occasional in sand prairie and sand savanna  -- 
Menispermum canadense  Moonseed  Menispermaceae  native  Occasional in sand forest  -- 
Mentha arvensis var.villosa  Field Mint  Lamiaceae  introduced  Occasional in wet-mesic floodplain forest  -- 
Mimulus ringens  Allegheny Monkey-flower  Scrophulariaceae  native  Infrequent in wet-mesic floodplain forest  -- 
Mirabilis hirsuta  Hairy Umbrella Wort  Nyctaginaceae  native  Infrequent in sand savanna and sand forest 
Mirabilis nyctaginea  Wild Four O'Clock  Nyctaginaceae  introduced  Occasional in developed land and successional fields  -- 
Mollugo verticillatus  Carpetweed  Molluginaceae  introduced  Frequent in sand forest, sand prairie, sand savanna, and successional field  -- 
Monarda fistulosa  Wild Bergamot  Lamiaceae  native  Occasional in sand savanna and wet-mesic bottomland forest  -- 
Monarda fistulosa var.mollis  Wild Bergamot  Lamiaceae  native  Infrequent in sand savanna  -- 
Monarda punctata  Horsemint  Lamiaceae  native  Frequent in sand prairie and sand savanna; occasonal in sand forest  -- 
Morus alba  White Mulberry  Moraceae  introduced  Infrequent in sand forest and sand savanna  -- 
Muhlenbergia mexicana  Western Muhly  Poaceae  native  Occasional in wet-mesic floodplain forest  -- 
Muhlenbergia racemosa  Muhly  Poaceae  native  Infrequent in sand forest, sand prairie, and sand savanna  -- 
Muhlenbergia schreberi  Nimblewill  Poaceae  native  Occasional in sand forest and wet-mesic floodplain forest  -- 
Myosoton aquaticum  Water Chickweed  Caryophyllaceae  introduced  Occasional in wet-mesic floodplain forest  -- 
Myriophyllum spicatum  European Water-milfoil  Haloragidaceae  introduced  Infrequent aquatic in Mississippi River  -- 
Najas minor  Naiad  Najadaceae  native  Occasional aquatic in Oxbow Lake and Mississippi River  -- 
Nelumbo lutea  American Lotus  Nelumbonaceae  native  Occasional as aquatic in Mississippi River  -- 
Nepeta cataria  Catnip  Lamiaceae  introduced  Occasional in developed land and sand savanna  -- 
Nymphaea tuberosa  Water-lily  Nymphaeaceae  native  Occasional aquatic in Mississippi River  -- 
Oenothera biennis  Common Evening-primrose  Onagraceae  native  Infrequent in wet-mesic bottomland forest  -- 
Oenothera laciniata  Ragged Evening Primrose  Onagraceae  native  Infrequent in disturbed sand prairie  -- 
Oenothera rhombipetala  Sand Primrose  Onagraceae  native  Occasional in sand forest; frequent in sand prairie and sand savanna  -- 
Onoclea sensibilis  Sensitive Fern  Dryopteridaceae  native  Occasional in sand forest and wet-mesic floodplain forest  -- 
Ophioglossum pusillum  Northern Adder's Tongue  Ophioglossaceae  native  Rare in wet-mesic floodplain forest  -- 
Opuntia fragilis  Fragile Prickly-pear  Cactaceae  native  Locally frequent in sand prairie 
Opuntia macrorhiza  Prickly-pear  Cactaceae  native  Frequent in sand prairie and sand savanna  -- 
Orobanche fasciculata  Clustered Broomrape  Orobanchaceae  native  not observed at SAD since 1908, but suitable habitat still extant 
Osmorhiza claytonii  Hairy Sweet Cicely  Apiaceae  native  Infrequent in sand forest  -- 
Osmorhiza longistylis  Smooth Sweet Cicely  Apiaceae  native  Infrequent in sand forest  -- 
Osmunda claytoniana  Interrupted Fern  Osmundaceae  native  Occasional in wet-mesic floodplain forest at its border with sand forest  -- 
Oxalis dillenii  Yellow Wood Sorrel  Oxalidaceae  native  Occasional in sand forest and sand savanna  -- 
Panicum capillare var capillare  Witch-grass  Poaceae  native  Infrequent in developed land and sand forest  -- 
Panicum depauperatum  Starved Panic Grass  Poaceae  native  Occasional in sand prairie and sand savanna  -- 
Panicum lanuginosumvar. fasciculatum  Old-field Panic Grass  Poaceae  native  Occasional in sand forest  -- 
Panicum lanuginosumvar. implicatum  Panic Grass  Poaceae  native  Occasional in sand prairie and sand savanna  -- 
Panicum linearifolium  Slender-leaved Panic Grass  Poaceae  native  Occasional in sand prairie and sand savanna  -- 
Panicum oligosanthes  Few-flowered Panic Grass  Poaceae  native  Occasional in sand forest, sand prairie and sand savanna -- 
Panicum villosissimum  Hairy Panic Grass  Poaceae  native  Frequent to abundant in sand prairie and sand savanna  -- 
Panicum virgatum  Switch Grass  Poaceae  native  Frequent in sand prairie and sand savanna; occasional in sand forest  -- 
Parietaria pensylvanica  Pellitory  Urticaceae  native  Occasional in sand forest and sand savanna  -- 
Paronychia canadensis  Tall Forked Chickweed  Caryophyllaceae  native  Occasional in sand savanna  -- 
Paronychia fasitgiata  Forked Chickweed  Caryophyllaceae  native  Occasional in sand forest  -- 
Parthenocissus quinquefolia  Virginia Creeper  Vitaceae  native  Occasional in sand forest  -- 
Parthenocissus vitacea  Thicket Creeper  Vitaceae  native  Occasional in wet-mesic bottomland forest  -- 
Paspalum bushii  Hairy Bead Grass  Poaceae  native  Occasional in sand prairie and sand savanna  -- 
Paspalum ciliatifolium  Paspalum  Poaceae  introduced?  Occasional in sand prairie and sand savanna  -- 
Pastinaca sativa  Wild Parsnip  Apiaceae  introduced  Infrequent in successional fields  -- 
Penstemon pallidus  Pale Beardstongue Scrophulariaceae  native  Occasional in sand forest, sand prairie and sand savanna -- 
Penthorum sedoides  Ditch Stonecrop  Saxifragaceae  native  Occasional in wet-mesic bottomland forest  -- 
Petalostemum purpureum Purple Prairie Clover  Fabaceae  native  Occasional in sand prairie  -- 
Phalaris arundinacea  Reed Canary Grass  Poaceae  introduced  Occasional in wet-mesic floodplain forest  -- 
Phlox divaricata subsp. laphamii  Blue Phlox  Polemoniaceae  native  Infrequent in sand forest border with wet-mesic floodplain forest  -- 
Phryma leptostachya  Lopseed  Verbenaceae  native  Occasional in sand forest  -- 
Phyla lanceolata  Fog-fruit  Verbenaceae  native  Occasional in wet-mesic bottomland forest  -- 
Physalis heterophylla  Ground Cherry  Solanaceae  native  Occasional in sand prairie and sand savanna  -- 
Physalis longifolia  Longleaf Ground-cherry  Solanaceae  native  Infrequent in wet-mesic floodplain forest  -- 
Physalis virginiana  Ground Cherry  Solanaceae  native  Frequent in sand prairie and sand savanna  -- 
Physocarpus opulifolius  Ninebark  Rosaceae  native  Rare in sand forest along Mississippi River  -- 
Physostegia virginiana  Obedient Plant  Lamiaceae  native  Occasional in wet-mesic bottomland forest  -- 
Pilea pumila  Clearweed  Urticaceae  native  Occasional in wet-mesic floodplain forest  -- 
Pinus banksiana  Jack Pine  Pinaceae  introduced in NW Illinois  Occasional in tree plantations and scattered trees in sand prairie and sand savanna  -- 
Pinus resinosa  Red Pine  Pinaceae  introduced in NW Illinois  Occasional in tree plantation  -- 
Plantago aristata  Bracted Plantain  Plantaginaceae  native?  Occasional in developed land  -- 
Plantago lanceolata  Dwarf Plantain  Plantaginaceae  introduced  Occasional in developed land  -- 
Plantago patagonica var brevicarpa  Salt-and-pepper Plant  Plantaginaceae  introduced?  Frequent in sand prairie and sand savanna  -- 
Plantago rugelii  Rugel's Plantain  Plantaginaceae  native  Occasional in developed land  -- 
Plantago virginica  Dwarf Plantain  Plantaginaceae  native  Occasional in developed land and successional field  -- 
Poa bulbosa  Bulbous Bluegrass  Poaceae  introduced  Rare in sand prairie  -- 
Poa compressa  Canadian Bluegrass  Poaceae  introduced  Occasional in sand forest, sand prairie and sand savanna -- 
Poa palustris  Fowl Bluegrass  Poaceae  native  Rare in wet-mesic floodplain forest  -- 
Poa pratensis  Kentucky Bluegrass  Poaceae  introduced  Abundant in developed land and sand prairie and sand savanna  -- 
Podophyllum peltatum  Mayapple  Berberidaceae  native  Occasional in sand forest  -- 
Polanisia dodecandra  Clammyweed  Capparidaceae  native  Occasional in sand forest, sand prairie, and sand savanna  -- 
Polanisia jamesii  James' Clammyweed  Capparidaceae  native  Frequent in sand forest, sand prairie, and sand savanna 
Polygala polygama var.obtusata  Purple Milkwort  Polygalaceae  native  Occasional in sand prairie and sand savanna  -- 
Polygala verticillata  Whorled Milkwort Polygalaceae  native  Occasional in sand prairie  -- 
Polygonatum biflorum  Solomon's Seal  Liliaceae  native  Occasional in sand forest  -- 
Polygonatum cespitosumvar. longisetum  Knotweed  Polygonaceae  introduced  Infrequent in successional field  -- 
Polygonella articulata  Jointweed  Polygonaceae  native  Occasional in sand prairie and sand savanna  -- 
Polygonum amphibium  Water Smartweed  Polygonaceae  native  Occasional in wet-mesic floodplain forest  -- 
Polygonum convolvulus  Black Bindweed  Polygonaceae  introduced  Occasional in sand forest and sand savanna  -- 
Polygonum hydropiper  Water-pepper  Polygonaceae  Introduced  Growing in wet-mesic floodplain forest  -- 
Polygonum lapathifolium  Dock-leaved Smartweed  Polygonaceae  native  Infrequent in wet-mesic floodplain forest  -- 
Polygonum pensylvanicum  Common Smartweed  Polygonaceae  native  Occasional in wet-mesic floodplain forest  -- 
Polygonum persicaria  Lady's Thumb  Polygonaceae  introduced  Occasional in wet-mesic floodplain forest  -- 
Polygonum punctatum  Dotted Smartweed Polygonaceae  native  Occasional in wet-mesic floodplain forest  -- 
Polygonum ramosissimum  Knotweed  Polygonaceae  native  Occasional in sand prairie, sand savanna, and wet-mesic floodplain forest  -- 
Polygonum scandens  False Buckwheat  Polygonaceae  native  Occasional in sand forest, sand savanna, and successional field  -- 
Polygonum tenue  Slender Knotweed Polygonaceae  native  Occasional in sand prairie and sand savanna  -- 
Polygonum virginianum  Jumpseed  Polygonaceae  native  Occasional in sand forest  -- 
Populus deltoides  Cottonwood  Salicaceae  native  Occasional in wet-mesic floodplain forest  -- 
Populus grandidentata  Big-tooth Aspen  Salicaceae  native  Occasional in sand forest and its border with wet-mesic floodplain forest  -- 
Populus tremuloides  Quaking Aspen  Salicaceae  native  Occasional in sand forest and sand savanna  -- 
Portulaca oleracea  Purslane  Portulacaceae  introduced  Infrequent in sand prairie  -- 
Potamogeton crispus  Curly Pondweed  Potamogetonaceae introduced  Occasional aquatic in Mississippi River  -- 
Potamogeton nodosus  Long-leaved Pondweed  Potamogetonaceae native  Occasional aquatic in pond and Mississippi River  -- 
Potamogeton pectinatus  Sago Pondweed  Potamogetonaceae native  Occasional aquatic in Mississippi River  -- 
Potamogeton pusillus  Slender Pondweed Potamogetonaceae native  Occasional aquatic in Mississippi River  -- 
Potentilla argentea  Silvery Cinquefoil  Rosaceae  introduced  Frequent to Abundant in developed land and sand prairie; occasional in sand savanna  -- 
Potentilla inclinata  Hoary Cinquefoil  Rosaceae  introduced  Rare in successional field  -- 
Potentilla norvegica  Rough Cinquefoil  Rosaceae  native  Occasional in developed land and wet-mesic floodplain forest  -- 
Potentilla recta  Sulfur Cinquefoil  Rosaceae  introduced  Frequent in sand prairie and sand savanna; occasional in sand forest  -- 
Potentilla simplex  Old-field Cinquefoil  Rosaceae  native  Occasional in sand forest  -- 
Prunella vulgaris  Self-heal  Lamiaceae  introduced  Occasional in developed land and sand savanna  -- 
Prunus americana  Wild Plum  Rosaceae  native  Frequent in sand forest and sand savanna  -- 
Prunus nigra  Canadian Plum  Rosaceae  native  Rare in sand forest  -- 
Prunus serotina  Wild Black Cherry Rosaceae  native  Occasional in sand forest and sand savanna  -- 
Prunus virginiana  Choke Cherry  Rosaceae  native  Occasional in sand forest and sand savanna  -- 
Ptelea trifoliata  Wafer Ash  Rutaceae  native  Occasional in sand forest, sand prairie, and sand savanna  -- 
Pteridium aquilinum  Bracken Fern  Dennstaedtiaceae  native  Infrequent in sand forest  -- 
Pycnanthemum virginianum  Mountain Mint  Lamiaceae  native  Infrequent in sand prairie  -- 

 

 

 


 

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