Illinois Natural History Survey - University of Illinois

List of the Vascular Plants at Site M, Cass County, Illinois

Part 2: F - P

K.R. RobertsonL. R. Phillippe, and G. A. Levin

The following table gives a list of all vascular plants that were observed during field work conducted during 1994 at Site M in Cass County, Illinois.

Genera beginning with F - P are given below. 
Go to Introduction and A - E 
Go to Q - Z

 

Scientific Name

Native or Introduced

Habitat

Frequency of Occurrence

Endangered or Threatened

Cass County Record

Echinacea pallida

native

hill prairies

only seen at 3 sites

--

--

Echinochloa crus-galli

introduced

creek beds, crop fields

occasional

--

new to Cass County

Eclipta prostrata

native

creek beds, edges of ponds

occasional

--

--

Eleocharis intermedia

native

pond

only seen once

--

new to Cass County

Eleocharis obtusavar. obtusa

native

wet area & around ponds

common

--

--

Eleusine indica

introduced

creek beds, along dirt road

common

--

--

Ellisia nyctelea

native

disturbed areas

occasional

--

--

Elymus canadensis

native

hill prairies

infrequent

--

--

Elymus hystrixvar. hystrix

native

edge of woods

infrequent

--

--

Elymus villosus

native

woods along streams

occasional

--

--

Elymus virginicusvar. virginicus

native

woods & open areas along streams

occasional

--

--

Epilobium coloratum

native

open area along intermitent stream

occasional

--

--

Equisetum arvense

native

seeps, wet areas

occasional

--

--

Equisetum laevigatum

native

seeps, wet areas

occasional

--

--

Eragrostis cilianensis

introduced

crop fields, creek banks, roadsides

occasional

--

--

Eragrostis frankii

native

roadside

occasional

--

--

Eragrostis hypnoides

native

creek banks

occasional

--

--

Eragrostis spectabilis

native

hill prairie

occasional

--

--

Erechtites hieracifolia

native

Edge of woods & plowed field

infrequent

--

--

Erigeron annuus

native

pastures, edge of woods, roadsides

common

--

--

Erigeron philadelphicus

native

upland woods & hill prairies

occasional

--

--

Erigeron pulchellus

native

hill prairie

infrequent

--

--

Erigeron strigosus

native

hill prairies

common

--

--

Erythronium albidum

native

mesic woods

infrequent

--

--

Euonymus atropurpurea

native

mesic woods near floodplain

infrequent

--

--

Eupatorium altissimum

native

hill prairies

common

--

--

Eupatorium coelestinum

native

open wet areas

occasional

--

--

Eupatorium perfoliatum

native

open wet areas

occasional

--

--

Eupatorium rugosum

native

upland woods

common

--

--

Eupatorium serotinum

native

hill prairies & pastures

common

--

--

Euphorbia corollata

native

hill prairies

common

--

--

Euphorbia marginata

introduced

muddy creek bank

infrequent

--

--

Festuca obtusa

native

woods

common

--

--

Festuca pratensis

introduced

pastures & hay fields

abundant

--

--

Forsythia x intermedia

introduced

persistent from cultivation

infrequent

--

new to Cass County

Fragaria virginiana

native

hill prairies & woods

common

--

--

Fraxinus pennsylvanica

native

upland woods

occasional

--

--

Galearis spectabilis

native

woods

only seen in 1 area

--

--

Galium aparine

native

woods & along streams

common

--

--

Galium circaezans

native

woods

occasional

--

--

Galium concinnum

native

upland woods

occasional

--

 

Galium triflorum

native

woods

common

--

--

Gaura biennis

native

hill prairies & pastures

common

--

--

Gaura longiflora

native

hill prairie

occasional

--

--

Gaura parviflora

introduced

hill prairie

occasional

--

--

Gentianella quinquefoliasubsp. occidentalis

native

hill prairies

only one location seen

--

--

Geranium carolinianum

native

waste areas

occasional

--

--

Geranium maculatum

native

mesic woods

occasional

--

--

Geum canadensevar. canadense

native

mesic woods

common

--

--

Geum vernum

native

low woods

occasional

--

new to Cass County

Glechoma hederacea var. micrantha

introduced

disturbed areas

common

--

--

Gleditsia triacanthos

native

woods & pastures

abundant

--

--

Glyceria striata

native

wet stream banks, wet areas

occasional

--

--

Gnaphalium obtusifolium

native

hill prairies

common

--

--

Hackelia virginiana

native

grazed woods

common

--

--

Hedeoma hispida

native

hill prairies

common

--

--

Helenium autumnale

native

creek beds

infrequent

--

--

Helianthus divaricatus

native

upland woods

occasional

--

--

Helianthus grosseserratus

native

hill prairies

only seen twice

--

--

Helianthus occidentalis

native

hill prairies

only seen twice

--

--

Helianthus strumosus

native

upland woods

occasional

--

--

Helianthus tuberosus var. subcanescens

native

open area of intermittent stream

occasional

--

--

Helianthus x laetiflorus

native

hill prairies

rare

--

--

Heliopsis helianthoides

native

hill prairies, hay fields, edge of woods

common

--

--

Hemerocallis fulva

introduced

roadside

occasional

--

--

Heracleum lanatum

native

creek bank

occasional

--

--

Hesperis matronalis

introduced

roadsides

infrequent

--

--

Heterotheca camporum

native

hill prairies

common

--

--

Heuchera richardsonii var. grayana

native

hill prairies

occasional

--

--

Hibiscus trionum

introduced

cropfields

frequent

--

--

Hieracium longipilum

native

hill prairies

occasional

--

--

Hieracium scabrum

native

edge of dirt road

infrequent

--

--

Holosteum umbellatum

introduced

roadsides & disturbed areas

occasional

--

--

Hordeum jubatum

native

roadsides

infrequent

--

--

Hordeum pusillum

native

roadsides & pastures

occasional

--

--

Humulus lupulus

native

edge of woods

common

--

--

Hydrastis canadensis

native

woods

occasional

--

--

Hydrophyllum virginianum

native

woods

infrequent

--

--

Hypericum pseudomaculatum

native

pastures

occasional

--

new to Cass County

Hypericum punctatum

native

hill prairies & pastures

occasional

--

--

Hypericum pyramidatum

native

edges of streams

only seen at 2 sites

--

--

Impatiens capensis

native

moist woods & streams

common

--

--

Impatiens pallida

native

moist woods & streams

occasional

--

--

Ipomoea hederacea

introduced

roadsides, fields

common

--

--

Ipomoea lacunosa

native

field

only seen once

--

--

Ipomoea pandurata

native

field

infrequent

--

--

Iris brevicaulis

native

old field

only seen once

--

--

Iris sibirica

introduced

old home site

infrequent

--

new to Cass County

Juglans nigra

native

woods

common

--

--

Juncus dudleyi

native

pastures

occasional

--

--

Juncus interior

native

hill prairies

occasional

--

--

Juncus tenuis

native

pastures

occasional

--

--

Juniperus virginiana

native

hill prairies

occasional

--

--

Lactuca canadensis

native

ditch

occasional

--

new to Cass County

Lactuca floridana

native

ditch

occasional

--

--

Lactuca serriola

introduced

fields

occasional

--

--

Lamium amplexicaule

introduced

disturbed areas

occasional

--

--

Lamium purpureum

introduced

disturbed areas

occasional

--

--

Laportea canadensis

native

bottomlands & mesic woods

common

--

--

Lathyrus latifolius

introduced

roadside & old home sites

infrequent

--

--

Leersia oryzoides

native

open wet areas around ponds, floodplains

occasional

--

--

Leersia virginica

native

creek beds & floodplain woods

common

--

--

Lemna obscura

native

ponds

occasional

--

--

Leonurus cardiaca

introduced

roadsides & disturbed areas

common

--

--

Lepidium campestre

introduced

pastures

occasional

--

--

Lepidium virginicum

native

seep

occasional

--

--

Lespedeza capitata

native

hill prairies

only rarely seen

--

--

Lespedeza intermedia

native

roadsides

infrequent

--

--

Lespedeza (Kummerowia) stipulacea

introduced

pastures

common

--

--

Leucanthemum vulgare

introduced

old fields

infrequent

--

--

Leucospora multifida

native

creek beds & banks

occasional

--

--

Liatris aspera

native

hill prairies

only seen twice

--

--

Liatris cylindracea

native

hill prairies

only seen at one hill prairie

--

--

Liatris scariosavar. nieuwlandii

native

opening between crop fields & disturbed edge of woods along dirt road

two locations

threatened

--

Linum sulcatum

native

hill prairie

common

--

--

Liparis liliifolia

native

woods & seeps

infrequent

--

--

Lithospermum arvense

introduced

roadsides & pastures

occasional

--

--

Lithospermum canescens

native

hill prairies

infrequent

--

--

Lithospermum incisum

native

hill prairies

occasional

--

--

Lobelia inflata

native

woods

occasional

--

--

Lobelia siphilitica

native

creek beds

common

--

--

Lobelia spicatavar. spicata

native

hill prairies, pastures

common

--

--

Lonicera japonica

introduced

woods

infrequent

--

--

Lonicera maackii

introduced

heavily grazed woods

infrequent

--

new to Cass County

Lychnis alba

introduced

wet area

infrequent

--

--

Lycopus americanus

native

floodplains

occasional

--

--

Lysimachia ciliata

native

along stream

occasional

--

--

Lysimachia nummularia

introduced

wet area

only seen once

--

--

Lysimachia quadrifolia

native

open wet area on steep slope in pasture

only seen once

--

--

Lythrum alatum

native

roadside ditch

only seen once

--

--

Maclura pomifera

introduced

woods, hill prairies, pastures

extremely abundant

--

--

Malus ioensis

native

edges of hill prairies, pastures

common

--

--

Malus pumila

introduced

common apple

old home sites

--

--

Matricaria matricarioides

introduced

disturbed area

infrequent

--

--

Medicago lupulina

introduced

hill prairies & pastures

occasional

--

--

Medicago sativa

introduced

hay fields

common

--

--

Melilotus alba

introduced

hill prairies & roadsided

common

--

--

Melilotus officinalis

introduced

hill prairies & roadsides

common

--

--

Menispermum canadense

native

mesic woods

occasional

--

--

Mentha arvensisvar. villosa

introduced

open creek banks

occasional

--

--

Mimulus alatus

native

creek beds

infrequent

--

--

Mimulus ringensvar. ringens

native

creek beds

infrequent

--

--

Mirabilis nyctaginea

introduced

disturbed areas

infrequent

--

--

Mollugo verticillatus

introduced

fields & along creeks

occasional

--

--

Monarda fistulosa

native

hill praires & pastures

abundant

--

--

Monarda punctatavar. villicaulis

native

hill prairies & pastures

infrequent

--

--

Morus alba

introduced

open pastures

occasional

--

--

Morus rubra

native

woods

occasional

--

--

Muhlenbergia frondosa

native

creekbanks

occasional

--

--

Muhlenbergia mexicana

native

edge of woods

occasional

--

--

Muhlenbergia schreberi

native

open areas

occasional

--

--

Muhlenbergia sobolifera

native

open shrub area on hilltop

occasional

--

--

Muscari botryoides

introduced

old home sites

infrequent

--

new to Cass County

Myosurus minimus

native

agricultural fields

infrequent

--

--

Narcissus poeticus

introduced

old home site

infrequent

--

new to Cass County

Narcissus pseudo-narcissus

introduced

old home site

infrequent

--

new to Cass County

Narcissus x incomparabilis

introduced

old home site

infrequent

--

new to Cass County

Nepeta cataria

introduced

disturbed areas

common

--

--

Oenothera biennisvar. biennis

native

pastures & hill prairies

frequent

--

--

Oenothera laciniata

native

hill prairie

infrequent

--

--

Onoclea sensibilis

native

along streams & low woods

occasional

--

--

Onosmodium molle ssp. occidentale

native

hill prairies

occasional

--

--

Opuntia macrorhiza

native

disturbed hill prairie

one area beneath power line

--

new to Cass County

Osmorhiza claytonii

native

dry upland woods

infrequent

--

--

Osmorhiza longistylis var. villicaulis

native

dry upland woods

common

--

new to Cass County

Osmunda claytoniana

native

mesic woods

infrequent

--

--

Ostrya virginiana

native

upland woods

common

--

--

Oxalis dillenii

native

shrublands, woods

common

--

--

Oxalis stricta

native

wet areas

occasional

--

--

Oxalis violacea

native

hill prairies

infrequent

--

--

Panax quinquefolius

native

mesic woods

infrequent

--

--

Panicum capillare

native

roadsides

occasional

--

--

Panicum clandestinum (Dichanthelium clandestinum)

native

edge of field

infrequent

--

--

Panicum dichotomiflorumvar. dichotomiflorum

native

fields

occasional

--

new to Cass County

Panicum flexile

native

disturbed areas

occasional

--

new to Cass County

Panicum lanuginosum var. fasciculatum (Dichanthelium acuminatum)

native

hill prairies & pastures

common

--

--

Panicum lanuginosum var. implicatum (Dichanthelium acuminatum)

native

hill prairies & pastures

occasional

--

--

Panicum lanuginosum var. lindheimeri (Dichanthelium acuminatum var. lindheimeri)

native

hill prairies & pastures

infrequent

--

--

Panicum latifolium (Dichanthelium latifolium)

native

old pasture along stream

infrequent

--

--

Panicum oligosanthes var. oligosanthes (Dichanthelium oligosanthes var. oligosanthes)

native

hill prairie

occasional

--

--

Panicum villosissimum (Dichanthelium villosissiumum)

native

hill prairies

occasional

--

--

Panicum virgatum

native

hill prairies

only seen once

--

--

Parietaria pensylvanica

native

dry woods

occasional

--

--

Parthenocissus quinquefolia

native

mesic woods & roadsides

occasional

--

--

Paspalum ciliatifolium var. muhlenbergii

native

old field

occasional

--

new to Cass County

Pastinaca sativa

introduced

roadsides, pastures, old fields, hill prairies

abundant

--

--

Penstemon pallidus

native

hill prairies

occasional

--

--

Penthorum sedoides

native

floodplain

infrequent

--

--

Phalaris arundinacea

introduced

along open streams

occasional

--

--

Phegopteris hexagonoptera

native

mesic woods

infrequent

--

--

Phleum pratense

introduced

pastures & hay fields

abundant

--

--

Phlox bifida ssp. bifida

native

hill prairies

infrequent

--

--

Phlox divaricata ssp. laphamii

native

mesic woods

occasional

--

--

Phryma leptostachya

native

dry woods

common

--

--

Phyla lanceolata

native

wet open areas, around ponds

occasional

--

--

Physalis heterophylla var. heterophylla

native

hill prairies, hay fields, roadsides

common

--

--

Physalis virginiana

native

hill prairies, hay fields, roadsides

common

--

--

Physostegia virginiana

native

hill prairies

only seen once

--

--

Phytolacca americana

native

disturbed areas, roadsides

common

--

--

Picea glauca

introduced

persisting from cultivation

only one tree seen

--

new to Cass County

Pilea pumila

native

creek beds & floodplains

common

--

--

Pinus strobus

introduced

plantation

one area

--

new to Cass County

Pinus sylvestris

introduced

planted at edge of hill prairied

one area

--

--

Plantago aristata

native

old fields

occasional

--

--

Plantago lanceolata

introduced

disturbed areas, roadsides

common

--

--

Plantago rugelii

native

roadsides

common

--

--

Plantago virginica

native

roadsides, pastures

common

--

--

Platanus occidentalis

native

low woods & along streams

common

--

--

Poa compressa

introduced

old fields

common

--

--

Poa pratensis

introduced

hill prairies, pastures, old fields

abundant

--

--

Poa sylvestris

native

woods

occasional

--

--

Podophyllum peltatum

native

woods

occasional

--

--

Poinsettia dentata

native

grazed hill prairie

occasional

--

--

Polygala verticillata var. isocycla

native

hill prairies & pastures

occasional

--

new to Cass County

Polygonatum commutatum

native

mesic woods

occasional

--

new to Cass County

Polygonum amphibium

native

open floodplains

occasional

--

--

Polygonum arenastrum

introduced

along dirt road

infrequent

--

--

Polygonum cespitosum var. longisteum

introduced

disturbed areas

common

--

new to Cass County

Polygonum convolvulus

introduced

wet area at base of ravines

infrequent

--

--

Polygonum hydropiperoides

native

wet areas

occasional

--

--

Polygonum lapathifolium

native

moist roadside

occasional

--

--

Polygonum pensylvanicum

native

creek beds & floodplains

occasional

--

--

Polygonum punctatum

native

creek beds & floodplains

occasional

--

--

Polygonum scandens

native

creek banks

occasional

--

--

Polygonum virginianum

native

mesic woods

occasional

--

--

Polystichum acrostichoides

native

mesic woods

occasional

--

--

Populus deltoides

native

bottomlands, along streams, hill prairies

common

--

new to Cass County

Portulaca oleracea

introduced

agricultural fields

occasional

--

--

Potentilla arguta

native

hill prairie

rare

--

new to Cass County

Potentilla recta

introduced

hill prairies, hay fields, pastures

common

--

--

Potentilla simplexvar. simplex

native

old field

occasional

--

--

Potomogeton foliosus

native

ponds

infrequent

--

--

Potomogeton nodosus

native

ponds

infrequent

--

new to Cass County

Prunella vulgarisvar. vulgaris

introduced

wet areas

common

--

new to Cass County

Prunus hortulana

native

old pastures

occasional

--

--

Prunus serotina

native

upland woods

infrequent

--

--

Psoralea tenuiflora

native

hill prairies

common

--

--

Ptelea trifoliata var. trifoliata

native

pastures, hill prairies

occasional

--

--

Pycnanthemum pilosum

native

hill prairies

common

--

--

Pycnanthemum virginianum

native

hill prairies

common

--

--

Pyrus communis

introduced

persisting from cultivation

occasional

--

--

Go to Introduction and A - E 
Go to Q - Z



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