Index / States / Illinois / Williamson
§1County listing — Illinois
Williamson County
Illinois
- FIPS
- 17199
- Taxa recorded
- 1,210
- State
- Illinois
Filter
Showing 601–650 of 1,015 (native).
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Nuttallanthus canadensis (L.) D.A. Sutton Native NUCACanada toadflax · Scrophulariaceae -
Nyssa sylvatica Marshall Native NYSYblackgum · Cornaceae -
Oenothera biennis L. Native OEBIcommon evening primrose · Onagraceae -
Oenothera curtiflora W.L. Wagner & Hoch Native OECU2velvetweed · Onagraceae -
Oenothera fruticosa L. Native OEFRnarrowleaf evening primrose · Onagraceae - Oenothera fruticosa L. ssp. tetragona (Roth) W.L. Wagner Native OEFRTnarrowleaf evening primrose · Onagraceae
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Oenothera laciniata Hill Native OELAcutleaf evening primrose · Onagraceae -
Oenothera linifolia Nutt. Native OELIthreadleaf evening primrose · Onagraceae -
Oenothera pilosella Raf. Native OEPI2meadow evening primrose · Onagraceae - Oenothera pilosella Raf. ssp. pilosella Native OEPIPmeadow evening primrose · Onagraceae
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Oligoneuron rigidum (L.) Small Native OLRIstiff goldenrod · Asteraceae - Oligoneuron rigidum (L.) Small var. rigidum Native OLRIRstiff goldenrod · Asteraceae
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Onoclea sensibilis L. Native ONSEsensitive fern · Dryopteridaceae -
Ophioglossum pusillum Raf. Native OPPU3northern adderstongue · Ophioglossaceae -
Opuntia humifusa (Raf.) Raf. Native OPHUdevil's-tongue · Cactaceae -
Orbexilum onobrychis (Nutt.) Rydb. Native ORONFrench-grass · Fabaceae -
Orbexilum pedunculatum (Mill.) Rydb. Native ORPESampson's snakeroot · Fabaceae - Orbexilum pedunculatum (Mill.) Rydb. var. pedunculatum Native ORPEP2Sampson's snakeroot · Fabaceae
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Osmorhiza claytonii (Michx.) C.B. Clarke Native OSCLClayton's sweetroot · Apiaceae -
Osmorhiza longistylis (Torr.) DC. Native OSLOlongstyle sweetroot · Apiaceae -
Osmunda regalis L. Native OSREroyal fern · Osmundaceae - Osmunda regalis L. var. spectabilis (Willd.) A. Gray Native OSRESroyal fern · Osmundaceae
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Ostrya virginiana (Mill.) K. Koch Native OSVIhophornbeam · Betulaceae -
Oxalis dillenii Jacq. Native OXDI2slender yellow woodsorrel · Oxalidaceae -
Oxalis stricta L. Native OXSTcommon yellow oxalis · Oxalidaceae -
Oxalis violacea L. Native OXVIviolet woodsorrel · Oxalidaceae -
Packera aurea (L.) Á. Löve & D. Löve Native PAAU3golden ragwort · Asteraceae -
Packera glabella (Poir.) C. Jeffrey Native PAGL17butterweed · Asteraceae -
Panax quinquefolius L. Native PAQUAmerican ginseng · Araliaceae -
Panicum anceps Michx. Native PAANbeaked panicgrass · Poaceae -
Panicum capillare L. Native PACA6witchgrass · Poaceae -
Panicum dichotomiflorum Michx. Native PADIfall panicgrass · Poaceae - Panicum dichotomiflorum Michx. var. dichotomiflorum Native PADIDfall panicgrass · Poaceae
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Panicum gattingeri Nash Native PAGAGattinger's panicgrass · Poaceae -
Panicum rigidulum Bosc ex Nees Native PARI4redtop panicgrass · Poaceae - Panicum rigidulum Bosc ex Nees var. rigidulum Native PARIRredtop panicgrass · Poaceae
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Panicum virgatum L. Native PAVI2switchgrass · Poaceae - Panicum virgatum L. var. virgatum Native PAVIVswitchgrass · Poaceae
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Parietaria pensylvanica Muhl. ex Willd. Native PAPE5Pennsylvania pellitory · Urticaceae -
Paronychia fastigiata (Raf.) Fernald Native PAFA3hairy forked nailwort · Caryophyllaceae -
Parthenium integrifolium L. Native PAIN3wild quinine · Asteraceae - Parthenium integrifolium L. var. integrifolium Native PAINIwild quinine · Asteraceae
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Parthenocissus quinquefolia (L.) Planch. Native PAQU2Virginia creeper · Vitaceae -
Paspalum dissectum (L.) L. Native PADI5mudbank crowngrass · Poaceae -
Paspalum floridanum Michx. Native PAFL4Florida paspalum · Poaceae -
Paspalum laeve Michx. Native PALA10field paspalum · Poaceae -
Paspalum pubiflorum Rupr. ex Fourn. Native PAPU5hairyseed paspalum · Poaceae -
Paspalum setaceum Michx. Native PASE5thin paspalum · Poaceae -
Passiflora incarnata L. Native PAIN6purple passionflower · Passifloraceae -
Passiflora lutea L. Native PALU2yellow passionflower · Passifloraceae