Iowa

• Adair 19001
  393 taxa Open ↗
• Adams 19003
  200 taxa Open ↗
• Allamakee 19005
  118 taxa Open ↗
• Appanoose 19007
  38 taxa Open ↗
• Audubon 19009
  225 taxa Open ↗
• Benton 19011
  21 taxa Open ↗
• Black Hawk 19013
  33 taxa Open ↗
• Boone 19015
  146 taxa Open ↗
• Bremer 19017
  24 taxa Open ↗
• Buchanan 19019
  16 taxa Open ↗

Showing 1,401–1,450 of 2,225.

• 
  Packera aurea (L.) Á. Löve & D. Löve Native PAAU3

  golden ragwort · Asteraceae 4 counties
• 
  Packera glabella (Poir.) C. Jeffrey Native PAGL17

  butterweed · Asteraceae 1 county
• 
  Packera paupercula (Michx.) Á. Löve & D. Löve Native PAPA20

  balsam groundsel · Asteraceae 15 counties
• 
  Packera plattensis (Nutt.) W.A. Weber & Á. Löve Native PAPL12

  prairie groundsel · Asteraceae 43 counties
• 
  Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve Native PAPS5

  falsegold groundsel · Asteraceae 2 counties
• 
  Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve var. semicordata (Mack. & Bush) D.K. Trock & T.M. Barkley Native PAPSS

  falsegold groundsel · Asteraceae 2 counties
• 
  Panax quinquefolius L. Native PAQU

  American ginseng · Araliaceae 10 counties
• 
  Panicum capillare L. Native PACA6

  witchgrass · Poaceae 45 counties
• 
  Panicum dichotomiflorum Michx. Native PADI

  fall panicgrass · Poaceae 34 counties
• 
  Panicum dichotomiflorum Michx. var. dichotomiflorum Native PADID

  fall panicgrass · Poaceae 34 counties
• 
  Panicum miliaceum L. Introduced PAMI2

  proso millet · Poaceae 9 counties
• 
  Panicum miliaceum L. ssp. miliaceum Introduced PAMIM

  broomcorn millet · Poaceae 9 counties
• 
  Panicum philadelphicum Bernh. ex Trin. Native PAPH

  Philadelphia panicgrass · Poaceae 4 counties
• 
  Panicum rigidulum Bosc ex Nees Native PARI4

  redtop panicgrass · Poaceae 1 county
• 
  Panicum rigidulum Bosc ex Nees var. rigidulum Native PARIR

  redtop panicgrass · Poaceae 1 county
• 
  Panicum virgatum L. Native PAVI2

  switchgrass · Poaceae 46 counties
• 
  Panicum virgatum L. var. virgatum Native PAVIV

  switchgrass · Poaceae 46 counties
• 
  Parietaria pensylvanica Muhl. ex Willd. Native PAPE5

  Pennsylvania pellitory · Urticaceae 19 counties
• 
  Parnassia glauca Raf. Native PAGL3

  fen grass of Parnassus · Saxifragaceae 2 counties
• 
  Paronychia canadensis (L.) Alph. Wood Native PACA11

  smooth forked nailwort · Caryophyllaceae 12 counties
• 
  Paronychia fastigiata (Raf.) Fernald Native PAFA3

  hairy forked nailwort · Caryophyllaceae 2 counties
• 
  Paronychia fastigiata (Raf.) Fernald var. fastigiata Native PAFAF

  hairy forked nailwort · Caryophyllaceae 1 county
• 
  Parthenium integrifolium L. Native PAIN3

  wild quinine · Asteraceae 4 counties
• 
  Parthenium integrifolium L. var. integrifolium Native PAINI

  wild quinine · Asteraceae 4 counties
• 
  Parthenocissus quinquefolia (L.) Planch. Native PAQU2

  Virginia creeper · Vitaceae 13 counties
• 
  Parthenocissus tricuspidata (Siebold & Zucc.) Planch. Introduced PATR6

  Boston ivy · Vitaceae 1 county
• 
  Parthenocissus vitacea (Knerr) Hitchc. Native PAVI5

  woodbine · Vitaceae 10 counties
• 
  Pascopyrum smithii (Rydb.) Á. Löve Native PASM

  western wheatgrass · Poaceae 40 counties
• 
  Paspalum setaceum Michx. Native PASE5

  thin paspalum · Poaceae 15 counties
• 
  Pastinaca sativa L. Introduced PASA2

  wild parsnip · Apiaceae 34 counties
• 
  Patis racemosa (Sm.) Romasch., P.M. Peterson & R. J. Soreng Native PARA2

  blackseed ricegrass · Poaceae 19 counties
• 
  Pedicularis canadensis L. Native PECA

  Canadian lousewort · Scrophulariaceae 11 counties
• 
  Pedicularis canadensis L. ssp. canadensis Native PECAC3

  Canadian lousewort · Scrophulariaceae 11 counties
• 
  Pedicularis lanceolata Michx. Native PELA2

  swamp lousewort · Scrophulariaceae 7 counties
• 
  Pediomelum argophyllum (Pursh) J. Grimes Native PEAR6

  silverleaf Indian breadroot · Fabaceae 24 counties
• 
  Pediomelum esculentum (Pursh) Rydb. Native PEES

  large Indian breadroot · Fabaceae 21 counties
• 
  Pellaea atropurpurea (L.) Link Native PEAT2

  purple cliffbrake · Pteridaceae 5 counties
• 
  Pellaea glabella Mett. ex Kuhn Native PEGL

  smooth cliffbrake · Pteridaceae 23 counties
• 
  Pellaea glabella Mett. ex Kuhn ssp. glabella Native PEGLG

  smooth cliffbrake · Pteridaceae 23 counties
• 
  Pennisetum glaucum (L.) R. Br. Introduced PEGL2

  pearl millet · Poaceae 40 counties
• 
  Penstemon albidus Nutt. Native PEAL2

  white penstemon · Scrophulariaceae 4 counties
• 
  Penstemon digitalis Nutt. ex Sims Native PEDI

  foxglove beardtongue · Scrophulariaceae 3 counties
• 
  Penstemon gracilis Nutt. Native PEGR5

  lilac penstemon · Scrophulariaceae 1 county
• 
  Penstemon gracilis Nutt. var. gracilis Native PEGRG3

  lilac penstemon · Scrophulariaceae 1 county
• 
  Penstemon grandiflorus Nutt. Native PEGR7

  large beardtongue · Scrophulariaceae 11 counties
• 
  Penstemon pallidus Small Native PEPA7

  pale beardtongue · Scrophulariaceae 3 counties
• 
  Penstemon tubaeflorus Nutt. Native PETU

  white wand beardtongue · Scrophulariaceae 1 county
• 
  Penstemon tubaeflorus Nutt. var. tubaeflorus Native PETUT

  white wand beardtongue · Scrophulariaceae 1 county
• 
  Penthorum sedoides L. Native PESE6

  ditch stonecrop · Crassulaceae 19 counties
• 
  Perilla frutescens (L.) Britton Introduced PEFR4

  beefsteakplant · Lamiaceae 1 county