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 1,451–1,500 of 2,225.

• 
  Petunia axillaris (Lam.) Britton, Sterns & Poggenb. Introduced PEAX

  large white petunia · Solanaceae 1 county
• 
  Petunia integrifolia (Hook.) Schinz & Thell. Introduced PEIN5

  violetflower petunia · Solanaceae 1 county
• 
  Phalaris arundinacea L. Native PHAR3

  reed canarygrass · Poaceae 34 counties
• 
  Phalaris canariensis L. Introduced PHCA5

  annual canarygrass · Poaceae 8 counties
• 
  Phegopteris connectilis (Michx.) Watt Native PHCO24

  long beechfern · Thelypteridaceae 1 county
• 
  Phegopteris hexagonoptera (Michx.) Fée Native PHHE11

  broad beechfern · Thelypteridaceae 3 counties
• 
  Phemeranthus parviflorus (Nutt.) Kiger Native PHPA29

  sunbright · Portulacaceae 1 county
• 
  Phleum pratense L. Introduced PHPR3

  timothy · Poaceae 38 counties
• 
  Phlox bifida Beck Native PHBI3

  cleft phlox · Polemoniaceae 1 county
• 
  Phlox bifida Beck ssp. bifida Native PHBIB

  cleft phlox · Polemoniaceae 1 county
• 
  Phlox divaricata L. Native PHDI5

  wild blue phlox · Polemoniaceae 21 counties
• 
  Phlox divaricata L. ssp. laphamii (Alph. Wood) Wherry Native PHDIL6

  Lapham's phlox · Polemoniaceae 21 counties
• 
  Phlox glaberrima L. Native PHGL4

  smooth phlox · Polemoniaceae 1 county
• 
  Phlox glaberrima L. ssp. interior (Wherry) Wherry Native PHGLI

  smooth phlox · Polemoniaceae 1 county
• 
  Phlox maculata L. Native PHMA4

  wild sweetwilliam · Polemoniaceae 1 county
• 
  Phlox paniculata L. Native PHPA9

  fall phlox · Polemoniaceae 4 counties
• 
  Phlox pilosa L. Native PHPI

  downy phlox · Polemoniaceae 29 counties
• 
  Phlox pilosa L. ssp. fulgida (Wherry) Wherry Native PHPIF2

  downy phlox · Polemoniaceae 28 counties
• 
  Phlox pilosa L. ssp. pilosa Native PHPIP2

  downy phlox · Polemoniaceae 2 counties
• 
  Phragmites australis (Cav.) Trin. ex Steud. Both PHAU7

  common reed · Poaceae 28 counties
• 
  Phragmites australis (Cav.) Trin. ex Steud. ssp. americanus Saltonst., P.M. Peterson & Soreng Native PHAUA6

  American common reed · Poaceae 1 county
• 
  Phragmites australis (Cav.) Trin. ex Steud. ssp. australis Introduced PHAUA7

  European common reed · Poaceae 1 county
• 
  Phryma leptostachya L. Native PHLE5

  American lopseed · Verbenaceae 15 counties
• 
  Phyla lanceolata (Michx.) Greene Native PHLA3

  lanceleaf fogfruit · Verbenaceae 16 counties
• 
  Physalis grisea (Waterf.) M. Martínez Native PHGR22

  strawberry-tomato · Solanaceae 3 counties
• 
  Physalis heterophylla Nees Native PHHE5

  clammy groundcherry · Solanaceae 20 counties
• 
  Physalis heterophylla Nees var. heterophylla Native PHHEH3

  clammy groundcherry · Solanaceae 20 counties
• 
  Physalis longifolia Nutt. Native PHLO4

  longleaf groundcherry · Solanaceae 15 counties
• 
  Physalis longifolia Nutt. var. longifolia Native PHLOL3

  longleaf groundcherry · Solanaceae 6 counties
• 
  Physalis longifolia Nutt. var. subglabrata (Mack. & Bush) Cronquist Native PHLOS

  longleaf groundcherry · Solanaceae 10 counties
• 
  Physalis philadelphica Lam. Introduced PHPH2

  Mexican groundcherry · Solanaceae 1 county
• 
  Physalis philadelphica Lam. var. immaculata Waterf. Introduced PHPHI

  Mexican groundcherry · Solanaceae 1 county
• 
  Physalis pubescens L. Native PHPU7

  husk tomato · Solanaceae 4 counties
• 
  Physalis pubescens L. var. integrifolia (Dunal) Waterf. Native PHPUI

  husk tomato · Solanaceae 2 counties
• 
  Physalis virginiana Mill. Native PHVI5

  Virginia groundcherry · Solanaceae 19 counties
• 
  Physalis virginiana Mill. var. virginiana Native PHVIV3

  Virginia groundcherry · Solanaceae 17 counties
• 
  Physocarpus opulifolius (L.) Maxim. var. intermedius (Rydb.) B.L. Rob. Native PHOPI

  Atlantic ninebark · Rosaceae 1 county
• 
  Physocarpus opulifolius (L.) Maxim., orth. cons. Native PHOP

  common ninebark · Rosaceae 5 counties
• 
  Physostegia angustifolia Fernald Native PHAN6

  narrowleaf false dragonhead · Lamiaceae 2 counties
• 
  Physostegia parviflora Nutt. ex A. Gray Native PHPA10

  western false dragonhead · Lamiaceae 2 counties
• 
  Physostegia virginiana (L.) Benth. Native PHVI8

  obedient plant · Lamiaceae 10 counties
• 
  Physostegia virginiana (L.) Benth. ssp. virginiana Native PHVIV

  obedient plant · Lamiaceae 4 counties
• 
  Phytolacca americana L. Native PHAM4

  American pokeweed · Phytolaccaceae 4 counties
• 
  Phytolacca americana L. var. americana Native PHAMA3

  American pokeweed · Phytolaccaceae 4 counties
• 
  Picris echioides L. Introduced PIEC

  bristly oxtongue · Asteraceae 1 county
• 
  Pilea pumila (L.) A. Gray Native PIPU2

  Canadian clearweed · Urticaceae 11 counties
• 
  Pilea pumila (L.) A. Gray var. pumila Native PIPUP

  Canadian clearweed · Urticaceae 6 counties
• 
  Pinus strobus L. Native PIST

  eastern white pine · Pinaceae 2 counties
• 
  Plantago aristata Michx. Native PLAR3

  largebracted plantain · Plantaginaceae 15 counties
• 
  Plantago cordata Lam. Native PLCO2

  heartleaf plantain · Plantaginaceae 1 county