Plants by Watershed, Plant Type, Introduced, Native, Ecoregion, Family, Common Name where Weed includes Yes

Watershed: Malheur

Grass

Introduced: No Information

Native: No

Snake River Plain - Treasure Valley

Grass

rabbitsfoot Scientific Name Polypogon monspeliensis Family Grass Flower Color Yellowish Plant Type Grass Native No Watershed Malheur Weed Yes

rabbitsfoot Scientific Name Polypogon monspeliensis Family Grass Flower Color Yellowish Plant Type Grass Native No Watershed Malheur Weed Yes

Watershed: No Information

Plant Type: No Information

Introduced: Yes

Native: No Information

Ecoregion: No Information

Composites, Sunflower

mayweed chamomile Scientific Name Anthemis cotula Family Composites, Sunflower Introduced Yes Weed Yes

stinking chamomile Scientific Name Anthemis cotula Family Composites, Sunflower Introduced Yes Weed Yes

Introduced: No Information

Native: No

Ecoregion: No Information

Composites, Sunflower

devil's beggarticks Scientific Name Bidens frondosa Family Composites, Sunflower Native No Weed Yes

leafy beggarticks Scientific Name Bidens frondosa Family Composites, Sunflower Native No Weed Yes

leafy sticktight Scientific Name Bidens frondosa Family Composites, Sunflower Native No Weed Yes

Legume or Pea

black medic Scientific Name Medicago lupulina Family Legume or Pea Native No Weed Yes

Native: No Information

Ecoregion: No Information

Composites, Sunflower

spineless horsebrush Scientific Name Tetradymia canescens Family Composites, Sunflower Weed Yes

Grass

meadow foxtail Scientific Name Alopecurus pratensis Family Grass Weed Yes

Horsetail

smooth scouring-rush Scientific Name Equisetum laevigatum Family Horsetail Weed Yes

Madder

fragrant bedstraw Scientific Name Galium triflorum Family Madder Weed Yes

sweetscented bedstraw Scientific Name Galium triflorum Family Madder Weed Yes

Mallow

alkali mallow Scientific Name Malvella leprosa Family Mallow Weed Yes

Potato

hairy nightshade Scientific Name Solanum sarrachoides Family Potato Weed Yes

hoe nightshade Scientific Name Solanum sarrachoides Family Potato Weed Yes

Spurge

thyme-leaved spurge Scientific Name Euphorbia glyptosperma Family Spurge Weed Yes

Forb

Introduced: North America

Native: No

Worldwide

Composites, Sunflower

common cockleburr Scientific Name Xanthium strumarium Family Composites, Sunflower Flower Color Green Plant Type Forb Introduced North America Native No Weed Yes

Introduced: Yes

Native: No

Snake River Plain - Unwooded Alkaline Foothills

Goosefoot

halogeton Scientific Name Halogeton glomeratus Family Goosefoot Flower Color Green-white Plant Type Forb Introduced Yes Native No Weed Yes

Ecoregion: No Information

Buckwheat

black bindweed Scientific Name Polygonum convolvulus Family Buckwheat Plant Type Forb Introduced Yes Native No Weed Yes

climbing bindweed Scientific Name Polygonum convolvulus Family Buckwheat Plant Type Forb Introduced Yes Native No Weed Yes

ivy bindweed Scientific Name Polygonum convolvulus Family Buckwheat Plant Type Forb Introduced Yes Native No Weed Yes

knot bindweed Scientific Name Polygonum convolvulus Family Buckwheat Plant Type Forb Introduced Yes Native No Weed Yes

Composites, Sunflower

rush skeletonweed Scientific Name Chondrilla juncea Family Composites, Sunflower Flower Color Yellow Plant Type Forb Introduced Yes Native No Weed Yes

Legume or Pea

white sweetclover Scientific Name Melilotus alba Family Legume or Pea Flower Color White Plant Type Forb Introduced Yes Native No Weed Yes

Mustard

black mustard Scientific Name Brassica nigra Family Mustard Flower Color Yellow Plant Type Forb Introduced Yes Native No Weed Yes

tall tumblemustard Scientific Name Sisymbrium altissimum Family Mustard Flower Color Yellowish Plant Type Forb Introduced Yes Native No Weed Yes

tumble mustard Scientific Name Sisymbrium altissimum Family Mustard Flower Color Yellowish Plant Type Forb Introduced Yes Native No Weed Yes

Potato

hairy night shade Scientific Name Solanum sarrachoides Family Potato Flower Color White Plant Type Forb Short Description There berries are Green, brown, and yellow when matured. Introduced Yes Native No Weed Yes

Native: No Information

Ecoregion: No Information

Composites, Sunflower

musk thistle Scientific Name Carduus nutans Family Composites, Sunflower Flower Color Purple Plant Type Forb Introduced Yes Weed Yes

Mint

henbit Scientific Name Lamium amplexicaule Family Mint Flower Color Purple Plant Type Forb Introduced Yes Weed Yes

henbit deadnettle Scientific Name Lamium amplexicaule Family Mint Flower Color Purple Plant Type Forb Introduced Yes Weed Yes

Spurge

leafy spurge Scientific Name Euphorbia esula Family Spurge Flower Color Yellow Plant Type Forb Introduced Yes Weed Yes

petty spurge Scientific Name Euphorbia peplus Family Spurge Plant Type Forb Introduced Yes Weed Yes

Introduced: No Information

Native: No

Snake River Plain - Treasure Valley

Composites, Sunflower

annual sowthistle Scientific Name Sonchus oleraceus Family Composites, Sunflower Flower Color Yellow Plant Type Forb Native No Weed Yes

Ecoregion: No Information

Buckwheat

Japanese knotweed Scientific Name Polygonum cuspidatum Family Buckwheat Plant Type Forb Native No Weed Yes

Composites, Sunflower

common groundsel Scientific Name Senecio vulgaris Family Composites, Sunflower Flower Color White, yellow Plant Type Forb Native No Weed Yes

diffuse knapweed Scientific Name Centaurea diffusa Family Composites, Sunflower Flower Color Light Pink Plant Type Forb Native No Weed Yes

marshelder Scientific Name Iva xanthifolia Family Composites, Sunflower Plant Type Forb Native No Weed Yes

old-man-in-the-Spring Scientific Name Senecio vulgaris Family Composites, Sunflower Flower Color White, yellow Plant Type Forb Native No Weed Yes

spotted knapweed Scientific Name Centaurea maculosa Family Composites, Sunflower Plant Type Forb Native No Weed Yes

yellow starthistle Scientific Name Centaurea solstitialis Family Composites, Sunflower Flower Color Yellow Plant Type Forb Native No Weed Yes

Goosefoot

Russian thistle Scientific Name Salsola kali Family Goosefoot Flower Color Pink, purple Plant Type Forb Short Description A Eurasian annual weed of dry, often alkaline areas. Native No Weed Yes

tumbleweed Scientific Name Salsola kali Family Goosefoot Flower Color Pink, purple Plant Type Forb Short Description A Eurasian annual weed of dry, often alkaline areas. Native No Weed Yes

Mustard

clasping pepperweed Scientific Name Lepidium perfoliatum Family Mustard Flower Color Green-yellow Plant Type Forb Native No Weed Yes

Native: North America

Ecoregion: No Information

Composites, Sunflower

pineappleweed Scientific Name Matricaria matricarioides Family Composites, Sunflower Plant Type Forb Native North America Weed Yes

Native: Yes

Ecoregion: No Information

Buckwheat

smart weed Scientific Name Polygonum Family Buckwheat Flower Color Pink and Yellowish Plant Type Forb Native Yes Weed Yes

smartweed Scientific Name Polygonum Family Buckwheat Flower Color Pink and Yellowish Plant Type Forb Native Yes Weed Yes

water smartweed Scientific Name Polygonum coccineum Family Buckwheat Flower Color Pink Plant Type Forb Native Yes Weed Yes

Composites, Sunflower

rush skeletonplant Scientific Name Lygodesmia juncea Family Composites, Sunflower Flower Color Light purple Plant Type Forb Native Yes Weed Yes

Evening Primrose

small-flowered gaura Scientific Name Gaura mollis Family Evening Primrose Flower Color Pink, Green Plant Type Forb Native Yes Weed Yes

Horsetail

scouringrush Scientific Name Equisetum hyemale Family Horsetail Flower Color Brown Plant Type Forb Native Yes Weed Yes

Legume or Pea

wild licorice Scientific Name Glycyrrhiza lepidota Family Legume or Pea Plant Type Forb Native Yes Weed Yes

Nettle

pellitory Scientific Name Parietaria pensylvanica Family Nettle Plant Type Forb Native Yes Weed Yes

Potato

angel's trumpet Scientific Name Datura innoxia Family Potato Flower Color White Plant Type Forb Native Yes Weed Yes

sacred datura Scientific Name Datura innoxia Family Potato Flower Color White Plant Type Forb Native Yes Weed Yes

Spurge

milk spurge Scientific Name Chamaesyce maculata Family Spurge Plant Type Forb Native Yes Weed Yes

prostrate spurge Scientific Name Chamaesyce maculata Family Spurge Plant Type Forb Native Yes Weed Yes

Native: No Information

Ecoregion: No Information

Amaranth

redroot pigweed Scientific Name Amaranthus retroflexus Family Amaranth Flower Color Green Plant Type Forb Weed Yes

Buckwheat

erect knotweed Scientific Name Polygonum argyrocoleon Family Buckwheat Flower Color Green Plant Type Forb Weed Yes

Evening Primrose

panicle willowweed Scientific Name Epilobium brachycarpum Family Evening Primrose Flower Color Purple, white Plant Type Forb Weed Yes

Grass

Introduced: Yes

Native: No

Ecoregion: No Information

Grass

barnyard grass Scientific Name Echinochloa muricata Family Grass Flower Color Green Plant Type Grass Introduced Yes Native No Weed Yes

cheat grass Scientific Name Bromus tectorum Family Grass Flower Color Green Plant Type Grass Introduced Yes Native No Weed Yes

common rye Scientific Name Secale cereale Family Grass Plant Type Grass Introduced Yes Native No Weed Yes

downy brome Scientific Name Bromus tectorum Family Grass Flower Color Green Plant Type Grass Introduced Yes Native No Weed Yes

green foxtail Scientific Name Setaria viridis Family Grass Flower Color Green, mixed Plant Type Grass Introduced Yes Native No Weed Yes

hairy crabgrass Scientific Name Digitaria sanguinalis Family Grass Plant Type Grass Introduced Yes Native No Weed Yes

hare barley Scientific Name Hordeum leporinum Family Grass Plant Type Grass Introduced Yes Native No Weed Yes

mouse barley Scientific Name Hordeum leporinum Family Grass Plant Type Grass Introduced Yes Native No Weed Yes

wild barley Scientific Name Hordeum leporinum Family Grass Plant Type Grass Introduced Yes Native No Weed Yes

Native: No Information

Ecoregion: No Information

Grass

creeping bentgrass Scientific Name Agrostis stolonifera Family Grass Plant Type Grass Short Description An introduced weed, sometimes used for lawns. Introduced Yes Weed Yes

Introduced: No Information

Native: No

Ecoregion: No Information

Grass

annual bluegrass Scientific Name Poa annua Family Grass Flower Color Green Plant Type Grass Native No Weed Yes

Native: No Information

Ecoregion: No Information

Family: No Information

reed canarygrass Scientific Name Phalaris arundinacea Plant Type Grass Weed Yes

Herb

Introduced: Europe

Native: No

Ecoregion: No Information

Morningglory

field bindweed Scientific Name Convolvulus arvensis Family Morningglory Flower Color White/Purple Plant Type Herb Introduced Europe Native No Weed Yes

Introduced: Yes

Native: No

Ecoregion: No Information

Composites, Sunflower

compass plant Scientific Name Lactuca serriola Family Composites, Sunflower Flower Color Yellow Plant Type Herb Introduced Yes Native No Weed Yes

prickly lettuce Scientific Name Lactuca serriola Family Composites, Sunflower Flower Color Yellow Plant Type Herb Introduced Yes Native No Weed Yes

Figwort or Snapdragon

moth mullein Scientific Name Verbascum blattaria Family Figwort or Snapdragon Flower Color White/Purple Plant Type Herb Introduced Yes Native No Weed Yes

Legume or Pea

yellow sweetclover Scientific Name Melilotus officinalis Family Legume or Pea Flower Color Yellow Plant Type Herb Introduced Yes Native No Weed Yes

Native: No Information

Ecoregion: No Information

Amaranth

tumble pigweed Scientific Name Amaranthus albus Family Amaranth Flower Color Green Plant Type Herb Short Description Amaranthus albus, tumble pigweed Introduced Yes Weed Yes

Introduced: No Information

Native: No

Idaho Batholith - High Glacial Drift-Filled Valleys

Composites, Sunflower

chicory Scientific Name Cichorium intybus Family Composites, Sunflower Flower Color Blue Plant Type Herb Location McCall Native No Weed Yes

dandelion Scientific Name Taraxacum officinale Family Composites, Sunflower Flower Color Yellow Plant Type Herb Location McCall Native No Weed Yes

Figwort or Snapdragon

bread and butter Scientific Name Linaria vulgaris Family Figwort or Snapdragon Flower Color Yellow Plant Type Herb Location McCall Native No Weed Noxious, Yes

butter and eggs Scientific Name Linaria vulgaris Family Figwort or Snapdragon Flower Color Yellow Plant Type Herb Location McCall Native No Weed Noxious, Yes

Mint

horehound Scientific Name Marrubium vulgare Family Mint Flower Color White-pale pink Plant Type Herb Short Description Horehound Location McCall and many locations Native No Weed Yes

white horehound Scientific Name Marrubium vulgare Family Mint Flower Color White-pale pink Plant Type Herb Short Description Horehound Location McCall and many locations Native No Weed Yes

Ecoregion: No Information

Buttercup

bur buttercup Scientific Name Ranunculus testiculatus Family Buttercup Flower Color Yellowish Plant Type Herb Native No Weed Yes

curveseed butterwort Scientific Name Ranunculus testiculatus Family Buttercup Flower Color Yellowish Plant Type Herb Native No Weed Yes

hornseed buttercup Scientific Name Ranunculus testiculatus Family Buttercup Flower Color Yellowish Plant Type Herb Native No Weed Yes

testiculate buttercup Scientific Name Ranunculus testiculatus Family Buttercup Flower Color Yellowish Plant Type Herb Native No Weed Yes

Mallow

cheeseweed Scientific Name Malva neglecta Family Mallow Flower Color Purple, white Plant Type Herb Native No Weed Yes

common mallow Scientific Name Malva neglecta Family Mallow Flower Color Purple, white Plant Type Herb Native No Weed Yes

Mustard

shepherd's purse Scientific Name Capsella bursa-pastoris Family Mustard Flower Color White Plant Type Herb Short Description Flat, triangular pods are all along a fine stalk. Leaves are pinnatifid. The plant forms a rosette. Location McCall Native No Weed Yes

Pink

bouncingbet Scientific Name Saponaria officinalis Family Pink Flower Color White-pale pink Plant Type Herb Short Description European origin, escaped as a weed, toxic to livestock but seldom consumed. Native No Weed Yes

jagged chickweed Scientific Name Holosteum umbellatum Family Pink Flower Color White Plant Type Herb Native No Weed Yes

soapwort Scientific Name Saponaria officinalis Family Pink Flower Color White-pale pink Plant Type Herb Short Description European origin, escaped as a weed, toxic to livestock but seldom consumed. Native No Weed Yes

Purslane

common purslane Scientific Name Portulaca oleracea Family Purslane Flower Color Yellow Plant Type Herb Short Description Common purslane Native No Weed Yes

Native: No Information

Idaho Batholith - High Glacial Drift-Filled Valleys

Madder

bedstraw Scientific Name Galium boreale Family Madder Flower Color White Plant Type Herb Location McCall and many locations Weed Yes

cleavers Scientific Name Galium aparine Family Madder Plant Type Herb Location McCall Weed Yes

sweet woodruf Scientific Name Galium boreale Family Madder Flower Color White Plant Type Herb Location McCall and many locations Weed Yes

Ecoregion: No Information

Amaranth

prostrate pigweed Scientific Name Amaranthus blitoides Family Amaranth Plant Type Herb Weed Yes

Parsley

Queen Anne's lace Scientific Name Daucus carota Family Parsley Flower Color White Plant Type Herb Weed Yes

wild carrot Scientific Name Daucus carota Family Parsley Flower Color White Plant Type Herb Weed Yes

St. John's Wort

St. John's Wort Scientific Name Hypericum formosum var. Scouleri Family St. John's Wort Flower Color Yellow Plant Type Herb Weed Yes

Shrub

Introduced: Europe

Native: No Information

Idaho Batholith - Foothill Shrublands-Grasslands

Teasel

common teasel Scientific Name Dipsacus fullonum Family Teasel Flower Color Brown - purple Plant Type Shrub Introduced Europe Weed Yes

Introduced: Yes

Native: No

Ecoregion: No Information

Composites, Sunflower

hardheads Scientific Name Acroptilon repens Family Composites, Sunflower Flower Color Pink, rose Plant Type Shrub Introduced Yes Native No Weed Noxious, Yes

Russian knapweed Scientific Name Acroptilon repens Family Composites, Sunflower Flower Color Pink, rose Plant Type Shrub Introduced Yes Native No Weed Noxious, Yes

Potato

Jimsonweed Scientific Name Datura stramonium Family Potato Flower Color White/Purple Plant Type Shrub Introduced Yes Native No Weed Yes

Introduced: No Information

Native: No

Ecoregion: No Information

Butterfly bush

butterfly bush Scientific Name Buddleja sp. Family Butterfly bush Plant Type Shrub Native No Weed Yes

Native: Yes

Ecoregion: No Information

Composites, Sunflower

green rabbitbrush Scientific Name Chrysothamnus viscidiflorus Family Composites, Sunflower Flower Color Yellowish Plant Type Shrub Short Description Yellow rabbitbrush is common in the intermountain west. It is an early succession plant following fire. Native Yes Weed Yes

yellow rabbitbrush Scientific Name Chrysothamnus viscidiflorus Family Composites, Sunflower Flower Color Yellowish Plant Type Shrub Short Description Yellow rabbitbrush is common in the intermountain west. It is an early succession plant following fire. Native Yes Weed Yes

Shrub - Tree

Introduced: No Information

Native: Yes

Ecoregion: No Information

Legume or Pea

false indigo Scientific Name Amorpha fruticosa Family Legume or Pea Flower Color Purple Plant Type Shrub - Tree Native Yes Weed Yes

indigo bush Scientific Name Amorpha fruticosa Family Legume or Pea Flower Color Purple Plant Type Shrub - Tree Native Yes Weed Yes

Tree

Introduced: No Information

Native: No

Ecoregion: No Information

Oleaster

Russian Olive Scientific Name Elaeagnus angustifolia Family Oleaster Plant Type Tree Native No Weed Yes

Tamarisk

salt cedar Scientific Name Tamarix parviflora Family Tamarisk Flower Color White-pale pink/ Purple Plant Type Tree Native No Weed Yes

tamarisk Scientific Name Tamarix parviflora Family Tamarisk Flower Color White-pale pink/ Purple Plant Type Tree Native No Weed Yes

Native: No Information

Ecoregion: No Information

Rose

wild plum Scientific Name Prunus sp. Family Rose Plant Type Tree Weed Yes

Vine

Introduced: No Information

Native: No Information

Ecoregion: No Information

Morningglory

dodder Scientific Name Cuscuta sp. Family Morningglory Flower Color White, cream Plant Type Vine Weed Yes