Nelumbonaceae

• Nelumbo lutea; American Lotus; Native; Photos Phytoimages; USDA Plants

Nymphaeaceae

• Nuphar advena; Synonyms: Nuphar luteum; Spatterdock; Native; Photos Phytoimages; USDA Plants

Nyssaceae

• Nyssa sylvatica; Blackgum, Black Tupelo; Native; Photos Phytoimages; USDA Plants

Oleaceae

• Forestiera acuminata; Swamp Privet; Native; Photos Phytoimages; USDA Plants

• Forsythia suspensa; Forsythia; Introduced (Europe); Photos Phytoimages; USDA Plants

• Fraxinus americana; White Ash; Native; Photos Phytoimages; USDA Plants

• Fraxinus pennsylvanica; Green Ash; Native; Photos Phytoimages; USDA Plants

• Ligustrum vulgare; Common (European) Privet; Introduced (Europe); Ulaszek (1988) does not report this exotic. The CCP lists it as rare. Mohlenbrock (2014)  describes it as "seldom occasionally escaped from cultivation in Illinois." A flourishing specimen can be found along Greenbrier Road, just inside the Refuge. The fragrance of its numerous flowers can be detected from a good distance away. Photos Phytoimages; USDA Plants

• Syringa vulgaris; Common Lilac; Introduced (Europe); Photos Phytoimages; USDA Plants

Onagraceae

• Circaea lutetiana; Enchanter’s Nightshade; Native; Photos Phytoimages; USDA Plants

• Epilobium coloratum; Cinnamon Willow Herb; Native; Photos Phytoimages; USDA Plants

• Ludwigia alternifolia; Seedbox; Native; Photos Phytoimages; USDA Plants

• Ludwigia decurrens; Wingstem Primrose-Willow; Native; Rare. Occurs along Rocky Bluff Trail. Photos Phytoimages; USDA Plants

• Ludwigia palustris; Marsh Purslane; Native; Photos Phytoimages; USDA Plants

• Ludwigia peploides; Synonyms: Jussiaea diffusa; Creeping Primrose Willow; Native; Photos Phytoimages; USDA Plants

• Oenothera biennis; Common Evening Primrose; Native; Photos Phytoimages; USDA Plants

• Oenothera laciniata; Ragged (Cut-leaf) Evening Primrose; Native; Uncommon. Can be found in fields along west side of Hwy 148. Photos Phytoimages; USDA Plants

Orobanchaceae

• Agalinis fasciculata; Tufted False Foxglove; Native; Photos Phytoimages; USDA Plants

• Agalinis paupercula; False Foxglove; Native; Photos Phytoimages; USDA Plants

• Agalinis tenuifolia; Slender False Foxglove; Native; Photos Phytoimages; USDA Plants

• Aureolaria flava; Smooth False Foxglove; Native; Photos Phytoimages; USDA Plants

• Dasistoma macrophylla; Mullein Foxglove; Native; Photos Phytoimages; USDA Plants

Oxalidaceae

• Oxalis corniculata; Creeping Wood-Sorrel; Introduced (tropics); Occasional. Occurs on grassy slopes near the Little Grassy Lake dam. Photos Phytoimages; USDA Plants

• Oxalis stricta; Synonyms: Oxalis dilennii, O. fontana; Common Wood Sorrel, Yellow Wood Sorrel; Native; Photos Phytoimages; USDA Plants

• Oxalis violacea; Purple Wood Sorrel; Native; Photos Phytoimages; USDA Plants

Papaveraceae

• Chelidonium majus; Celandine; Native; Photos Phytoimages; USDA Plants

• Corydalis flavula; Pale Corydalis; Native; Photos Phytoimages; USDA Plants

• Dicentra canadensis; Squirrelcorn; Native; Photos Phytoimages; USDA Plants

• Dicentra cucullaria; Dutchman’s-Breeches; Native; Photos Phytoimages; USDA Plants

• Sanguinaria canadensis; Bloodroot; Native; Photos Phytoimages; USDA Plants

• Stylophorum diphyllum; Wood Poppy; Native; Photos Phytoimages; USDA Plants

Passifloraceae

• Passiflora incarnata; Large Purple Passion-flower; Native; Photos Phytoimages; USDA Plants

• Passiflora lutea; Small Yellow Passion-flower; Native; Photos Phytoimages; USDA Plants

Penthoraceae

• Penthorum sedoides; Ditch Stonecrop; Native; Photos Phytoimages; USDA Plants

Phrymaceae

• Mimulus alatus; Winged Monkey-Flower; Native; Photos Phytoimages; USDA Plants

• Phryma leptostachya; Lopseed; Native; Occasional. In rich woods. Easily found along Rocky Bluff Trail. Photos Phytoimages; USDA Plants

Phytolaccaceae

• Phytolacca americana; Pokeweed; Native; Abundant throughout the Refuge. Photos Phytoimages; USDA Plants

Plantaginaceae

• Bacopa rotundifolia; Water Hyssop; Native; Photos Phytoimages; USDA Plants

• Callitriche terrestris; Terrestrial Starwort; Native; Uncommon to rare. I found this inconspicuous plant in a moist area of Rocky Bluff Trail and in Post Oak flatwoods.  Ulaszek (1988) reports it as occurring on shaded trails. Photos Phytoimages; USDA Plants

• Chaenorhinum minus; Dwarf Snapdragon; Introduced (Europe); Photos Phytoimages; USDA Plants

• Chelone obliqua; Pink Turtlehead; Native; Photos Phytoimages; USDA Plants

• Collinsia verna; Blue-eyed Mary; Native; Photos Phytoimages; USDA Plants

• Gratiola neglecta; Common Hedge Hyssop; Native; Photos Phytoimages; USDA Plants

• Penstemon calycosus; Smooth Beard-tongue; Native; Photos Phytoimages; USDA Plants

• Penstemon digitalis; Foxglove Beard-tongue; Native; Photos Phytoimages; USDA Plants

• Penstemon pallidus; Pale Beard-tongue; Native; Photos Phytoimages; USDA Plants

• Plantago aristata; Bracted Plantain; Native; Common in dry, mostly disturbed places throughout the Refuge. When very young and in bloom, this plant looks different from its mature form. Photos Phytoimages; USDA Plants

• Plantago lanceolata; Buckhorn (English) Plantain; Introduced (Europe); Photos Phytoimages; USDA Plants

• Plantago major; Common Plantain; Introduced (Europe); Photos Phytoimages; USDA Plants

• Plantago pusilla; Small Plantain; Native; Photos Phytoimages; USDA Plants

• Plantago rugelii; Rugel’s Plantain; Native; Photos Phytoimages; USDA Plants

• Plantago virginica; Virginia Plantain; Native; A very common plantain in fields and disturbed areas throughout the Refuge. Easily recognized by its relatively broad leaves and hairy stems. Photos Phytoimages; USDA Plants

• Veronica arvensis; Corn Speedwell; Introduced (Europe); Photos Phytoimages; USDA Plants

• Veronica peregrina; White Speedwell; Native; Photos Phytoimages; USDA Plants

• Veronicastrum virginicum; Culver’s Root; Native; Photos Phytoimages; USDA Plants

Platanaceae

• Platanus occidentalis; Sycamore; Native; Abundant and conspicuous throughout the Refuge. Photos Phytoimages; USDA Plants

Polemoniaceae

• Phlox bifida; Cleft Phlox; Native; Photos Phytoimages; USDA Plants

• Phlox divaricata; Common Phlox; Native; Photos Phytoimages; USDA Plants

• Phlox glaberrima; Smooth Phlox; Native; Occasional. Along Rocky Bluff Trail. Photos Phytoimages; USDA Plants

• Phlox paniculata; Garden Phlox; Native; Occasional in weedy roadsides. Can be found along Ogden Road west of Hwy 148. This plant can be recognized by its distinctly laterally veined leaves. Photos Phytoimages; USDA Plants

• Polemonium reptans; Jacob’s Ladder; Native; Photos Phytoimages; USDA Plants

Polygalaceae

• Polygala sanguinea; Field (Red) Milkwort; Native; Uncommon to rare. Occasionally in fields and prairies. Locally uncommon in the fields between Hwy 148 and Observation Pond.  Photos Phytoimages; USDA Plants

Polygonaceae

• Fallopia cristata; Synonyms: Polygonum cristatum; Crested Bindweed; Native; Uncommon in weedy, disturbed areas. Yatskievych (2006) and Jones (2005) view this taxon as a variant of F. scandens. Mohlenbrock (2014) reports it as a distinct species. The smaller size and crested wings of the seeds distinguish it from F. scandens.  Photos Phytoimages; USDA Plants

• Fallopia scandens; Synonyms: Polygonum scandens; Climbing Buckweed; Native; Photos Phytoimages; USDA Plants

• Persicaria coccinea; Synonyms: Polygonum coccineum; Scarlet Smartweed; Native; Rare. It grows along the water’s edge at Wolf Creek Causeway. Photos Phytoimages; USDA Plants

• Persicaria hydropiperoides; Synonyms: Polygonum hydropiperoides; Mild Water Pepper; Native; Photos Phytoimages; USDA Plants

• Persicaria lapathifolia; Synonyms: Polygonum lapathifolia; Pale Smartweed; Native; Photos Phytoimages; USDA Plants

• Persicaria longiseta; Synonyms: Polygonum caespitosum; Creeping Smartweed; Introduced (Asia); Photos Phytoimages; USDA Plants

• Persicaria maculosa; Synonyms: Polygonum persicaria; Lady’s Thumb; Introduced (Asia); Photos Phytoimages; USDA Plants

• Persicaria pensylvanica; Synonyms: Polygonym pensylvanica; Pink Smartweed; Native; Photos Phytoimages; USDA Plants

• Persicaria punctata; Synonyms: Polygonum punctata; Dotted Smartweed; Native; Photos Phytoimages; USDA Plants

• Persicaria setacea; Synonyms: Polygonum setacea; Slender (Bristly) Smartweed; Native; Photos Phytoimages; USDA Plants

• Persicaria virginiana; Synonyms: Antenoron virginianum, Polygonum virginianum; Virginia Knotweed; Native; Photos Phytoimages; USDA Plants

• Polygonum aviculare; Synonyms: or Polygonum arenastrum?; Knotweed; Introduced (Europe); Photos Phytoimages; USDA Plants

• Polygonum tenue; Slender Knotweed; Native; Photos Phytoimages; USDA Plants

• Rumex acetosella; Sour Dock; Introduced (Europe); Photos Phytoimages; USDA Plants

• Rumex altissimus; Pale Dock; Native; Photos Phytoimages; USDA Plants

• Rumex crispus; Curly Dock; Introduced (Europe); Photos Phytoimages; USDA Plants

• Rumex obtusifolius; Bitter (Broad-leaved) Dock; Introduced (Europe); Photos Phytoimages; USDA Plants

Portulacaceae

• Portulaca oleracea; Common Puslane; Introduced (Europe); Locally common in disturbed areas.   Photos Phytoimages; USDA Plants

Primulaceae

• Dodecatheon frenchii; French’s Shooting Star; Native; Photos Phytoimages; USDA Plants

• Dodecatheon meadia; Eastern Shooting Star; Native; Photos Phytoimages; USDA Plants

• Lysimachia ciliata; Synonym: Steironema cilatum; Fringed Loosestrife; Native; Photos Phytoimages; USDA Plants

• Lysimachia lanceolata; Synonym: Steironema lanceolatum; Narrow-leaved Loosestrife; Native; Photos Phytoimages; USDA Plants

• Lysimachia nummularia; Moneywort; Introduced (Europe); Photos Phytoimages; USDA Plants

• Samolus valerandi; Synonyms: Samolus parviflorus; Brookweed; Native; Photos Phytoimages; USDA Plants