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 301–350 of 2,225.

• 
  Bromus secalinus L. Introduced BRSE

  rye brome · Poaceae 31 counties
• 
  Bromus secalinus L. var. secalinus Introduced BRSES

  rye brome · Poaceae 31 counties
• 
  Bromus tectorum L. Introduced BRTE

  cheatgrass · Poaceae 57 counties
• 
  Buglossoides arvensis (L.) I.M. Johnst. Introduced BUAR3

  corn gromwell · Boraginaceae 1 county
• 
  Calamagrostis canadensis (Michx.) P. Beauv. Native CACA4

  bluejoint · Poaceae 36 counties
• 
  Calamagrostis canadensis (Michx.) P. Beauv. var. canadensis Native CACAC10

  bluejoint · Poaceae 2 counties
• 
  Calamagrostis stricta (Timm) Koeler Native CAST36

  slimstem reedgrass · Poaceae 11 counties
• 
  Calamagrostis stricta (Timm) Koeler ssp. inexpansa (A. Gray) C.W. Greene Native CASTI3

  northern reedgrass · Poaceae 11 counties
• 
  Calamovilfa longifolia (Hook.) Scribn. Native CALO

  prairie sandreed · Poaceae 18 counties
• 
  Calamovilfa longifolia (Hook.) Scribn. var. longifolia Native CALOL2

  prairie sandreed · Poaceae 2 counties
• 
  Callirhoe involucrata (Torr. & A. Gray) A. Gray Native CAIN2

  purple poppymallow · Malvaceae 5 counties
• 
  Callirhoe involucrata (Torr. & A. Gray) A. Gray var. involucrata Native CAINI4

  purple poppymallow · Malvaceae 5 counties
• 
  Callirhoe triangulata (Leavenworth) A. Gray Native CATR

  clustered poppymallow · Malvaceae 2 counties
• 
  Callitriche heterophylla Pursh Native CAHE3

  twoheaded water-starwort · Callitrichaceae 2 counties
• 
  Callitriche heterophylla Pursh ssp. heterophylla Native CAHEH

  twoheaded water-starwort · Callitrichaceae 2 counties
• 
  Callitriche palustris L. Native CAPA52

  vernal water-starwort · Callitrichaceae 1 county
• 
  Calopogon tuberosus (L.) Britton, Sterns & Poggenb. Native CATU5

  tuberous grasspink · Orchidaceae 1 county
• 
  Calopogon tuberosus (L.) Britton, Sterns & Poggenb. var. tuberosus Native CATUT

  tuberous grasspink · Orchidaceae 1 county
• 
  Caltha palustris L. Native CAPA5

  yellow marsh marigold · Ranunculaceae 6 counties
• 
  Caltha palustris L. var. palustris Native CAPAP6

  yellow marsh marigold · Ranunculaceae 6 counties
• 
  Calylophus serrulatus (Nutt.) P.H. Raven Native CASE12

  yellow sundrops · Onagraceae 13 counties
• 
  Calystegia sepium (L.) R. Br. Both CASE13

  hedge false bindweed · Convolvulaceae 27 counties
• 
  Calystegia sepium (L.) R. Br. ssp. americana (Sims) Brummitt Native CASEA2

  hedge false bindweed · Convolvulaceae 2 counties
• 
  Calystegia sepium (L.) R. Br. ssp. angulata Brummitt Native CASEA3

  hedge false bindweed · Convolvulaceae 24 counties
• 
  Calystegia silvatica (Kit.) Griseb. Both CASI10

  shortstalk false bindweed · Convolvulaceae 1 county
• 
  Calystegia silvatica (Kit.) Griseb. ssp. fraterniflora (Mack. & Bush) Brummitt Native CASIF

  shortstalk false bindweed · Convolvulaceae 1 county
• 
  Calystegia spithamaea (L.) Pursh Native CASP14

  low false bindweed · Convolvulaceae 1 county
• 
  Calystegia spithamaea (L.) Pursh ssp. spithamaea Native CASPS2

  low false bindweed · Convolvulaceae 1 county
• 
  Camassia scilloides (Raf.) Cory Native CASC5

  Atlantic camas · Liliaceae 3 counties
• 
  Camelina microcarpa Andrz. ex DC. Introduced CAMI2

  littlepod false flax · Brassicaceae 3 counties
• 
  Camelina sativa (L.) Crantz Introduced CASA2

  false flax · Brassicaceae 2 counties
• 
  Camelina sativa (L.) Crantz ssp. sativa Introduced CASAS2

  gold-of-pleasure · Brassicaceae 2 counties
• 
  Campanula aparinoides Pursh Native CAAP2

  marsh bellflower · Campanulaceae 5 counties
• 
  Campanula rapunculoides L. Introduced CARA

  rampion bellflower · Campanulaceae 3 counties
• 
  Campanula rotundifolia L. Native CARO2

  bluebell bellflower · Campanulaceae 5 counties
• 
  Campanulastrum americanum (L.) Small Native CAAM18

  American bellflower · Campanulaceae 26 counties
• 
  Campsis radicans (L.) Seem. ex Bureau Native CARA2

  trumpet creeper · Bignoniaceae 4 counties
• 
  Cannabis sativa L. Introduced CASA3

  marijuana · Cannabaceae 14 counties
• 
  Cannabis sativa L. ssp. sativa Introduced CASAS3

  marijuana · Cannabaceae 14 counties
• 
  Cannabis sativa L. ssp. sativa var. sativa Introduced CASAS9

  marijuana · Cannabaceae 11 counties
• 
  Capsella bursa-pastoris (L.) Medik. Introduced CABU2

  shepherd's purse · Brassicaceae 19 counties
• 
  Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. Native CABU3

  bulbous bittercress · Brassicaceae 15 counties
• 
  Cardamine concatenata (Michx.) Sw. Native CACO26

  cutleaf toothwort · Brassicaceae 10 counties
• 
  Cardamine hirsuta L. Introduced CAHI3

  hairy bittercress · Brassicaceae 1 county
• 
  Cardamine parviflora L. Native CAPA12

  sand bittercress · Brassicaceae 2 counties
• 
  Cardamine parviflora L. var. arenicola (Britton) O.E. Schulz Native CAPAA2

  sand bittercress · Brassicaceae 2 counties
• 
  Cardamine pensylvanica Muhl. ex Willd. Native CAPE3

  Pennsylvania bittercress · Brassicaceae 5 counties
• 
  Cardaria draba (L.) Desv. Introduced CADR

  whitetop · Brassicaceae 9 counties
• 
  Carduus acanthoides L. Introduced CAAC

  spiny plumeless thistle · Asteraceae 7 counties
• 
  Carduus nutans L. Introduced CANU4

  nodding plumeless thistle · Asteraceae 14 counties