Clark County

Showing 1–50 of 112 (introduced).

• 
  Abutilon theophrasti Medik. Introduced ABTH

  velvetleaf · Malvaceae
• 
  Aethusa cynapium L. Introduced AECY2

  fool's parsley · Apiaceae
• 
  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae
• 
  Alliaria petiolata (M. Bieb.) Cavara & Grande Introduced ALPE4

  garlic mustard · Brassicaceae
• 
  Allium cepa L. Introduced ALCE

  garden onion · Liliaceae
• 
  Amaranthus albus L. Introduced AMAL

  prostrate pigweed · Amaranthaceae
• 
  Amaranthus blitoides S. Watson Introduced AMBL

  mat amaranth · Amaranthaceae
• 
  Ambrosia artemisiifolia L. var. elatior (L.) Descourtils Introduced AMARE

  annual ragweed · Asteraceae
• 
  Anagallis arvensis L. Introduced ANAR

  scarlet pimpernel · Primulaceae
• 
  Arctium minus Bernh. Introduced ARMI2

  lesser burdock · Asteraceae
• 
  Arenaria serpyllifolia L. Introduced ARSE2

  thymeleaf sandwort · Caryophyllaceae
• 
  Artemisia annua L. Introduced ARAN3

  sweet sagewort · Asteraceae
• 
  Buglossoides arvensis (L.) I.M. Johnst. Introduced BUAR3

  corn gromwell · Boraginaceae
• 
  Calystegia hederacea Wall. Introduced CAHE21

  Japanese false bindweed · Convolvulaceae
• 
  Camelina microcarpa Andrz. ex DC. Introduced CAMI2

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

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

  gold-of-pleasure · Brassicaceae
• 
  Campanula rapunculoides L. Introduced CARA

  rampion bellflower · Campanulaceae
• 
  Capsella bursa-pastoris (L.) Medik. Introduced CABU2

  shepherd's purse · Brassicaceae
• 
  Celastrus orbiculatus Thunb. Introduced CEOR7

  Oriental bittersweet · Celastraceae
• 
  Cerastium fontanum Baumg. Introduced CEFO2

  common mouse-ear chickweed · Caryophyllaceae
• 
  Cerastium fontanum Baumg. ssp. vulgare (Hartm.) Greuter & Burdet Introduced CEFOV2

  big chickweed · Caryophyllaceae
• 
  Chaenorhinum minus (L.) Lange Introduced CHMI

  dwarf snapdragon · Scrophulariaceae
• 
  Chelidonium majus L. Introduced CHMA2

  celandine · Papaveraceae
• 
  Chelidonium majus L. var. majus Introduced CHMAM

  celandine · Papaveraceae
• 
  Cirsium arvense (L.) Scop. Introduced CIAR4

  Canada thistle · Asteraceae
• 
  Conium maculatum L. Introduced COMA2

  poison hemlock · Apiaceae
• 
  Convolvulus arvensis L. Introduced COAR4

  field bindweed · Convolvulaceae
• 
  Cynoglossum officinale L. Introduced CYOF

  gypsyflower · Boraginaceae
• 
  Daucus carota L. Introduced DACA6

  Queen Anne's lace · Apiaceae
• 
  Dipsacus fullonum L. Introduced DIFU2

  Fuller's teasel · Dipsacaceae
• 
  Draba verna L. Introduced DRVE2

  spring draba · Brassicaceae
• 
  Dysphania botrys (L.) Mosyakin & Clemants Introduced DYBO

  Jerusalem oak goosefoot · Chenopodiaceae
• 
  Echium vulgare L. Introduced ECVU

  common viper's bugloss · Boraginaceae
• 
  Elaeagnus umbellata Thunb. Introduced ELUM

  autumn olive · Elaeagnaceae
• 
  Elaeagnus umbellata Thunb. var. parvifolia (Wall. ex Royle) C.K. Schneid. Introduced ELUMP

  autumn olive · Elaeagnaceae
• 
  Erodium cicutarium (L.) L'Hér. ex Aiton Introduced ERCI6

  redstem stork's bill · Geraniaceae
• 
  Erodium cicutarium (L.) L'Hér. ex Aiton ssp. cicutarium Introduced ERCIC

  redstem stork's bill · Geraniaceae
• 
  Erysimum cheiranthoides L. Introduced ERCH9

  wormseed wallflower · Brassicaceae
• 
  Erysimum repandum L. Introduced ERRE4

  spreading wallflower · Brassicaceae
• 
  Euonymus alatus (Thunb.) Siebold Introduced EUAL13

  burningbush · Celastraceae
• 
  Euonymus alatus (Thunb.) Siebold var. alatus Introduced EUALA2

  burningbush · Celastraceae
• 
  Euphorbia peplus L. Introduced EUPE6

  petty spurge · Euphorbiaceae
• 
  Glechoma hederacea L. Introduced GLHE2

  ground ivy · Lamiaceae
• 
  Helleborus viridis L. Introduced HEVI

  green hellebore · Ranunculaceae
• 
  Hibiscus trionum L. Introduced HITR

  flower of an hour · Malvaceae
• 
  Holosteum umbellatum L. Introduced HOUM

  jagged chickweed · Caryophyllaceae
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae
• 
  Lactuca serriola L. Introduced LASE

  prickly lettuce · Asteraceae