The Enemy: Chinese Elm (Ulmus parifola)

The Enemy: Prostrate purslane (Portulaca oleracea)

The Enemy: Houndstongue (Cynoglossum officinale)

The Enemy: Perennial pepperweed (Lepidium latifolium)

The Enemy: Moth mullein (Verbascum blatteria L.)

The Enemy: Austrian filedcress (Rippa austriaca)

The Enemy: Smooth brome (Bromus inermis)

The Enemy: Puncturevine (Tribulus terrestris)

The Enemy: Wild angelica (Angelica sylvestris)

The Enemy: Western salsify (Tragopogon dubius)

The Enemy: London rocket (Sisymbrium irio)

The Enemy: Golden chamomile (Anthemis tinctoria)

The Enemy: Rocky Mountain beeplant (Cleome serrulata) or spider flower

The Enemy: Common groundsel (Senecio vulgaris)

The Enemy: Maltese starthistle (Centaurea melitensis)

The Enemy: Orange sneezeweed (Hymenoxys hoopesii)

The Enemy: Catnip (Nepeta cataria)

The Enemy: Elk thistle (Cirsium foliosum)

The Enemy: Siberian elm (Ulmus pumila)

The Enemy: Creeping waterprimrose (Ludwigia peploides)

The Enemy: Desert saltgrass (Distichlis spicata)

The Enemy: Missouri goldenrod (Solidago missouriensis)

The Enemy: In the spirit of CHRISTmas — holly, that is English holly (Ilex aquifolium). Holly is a perennial evergreen shrub that can grow into large trees. As we all have seen around the holidays, it has wavy and waxy leaves with small spines. This plant comes from woodlands in Europe, East…

The Enemy: Mistletoe (Phoradendron macrophyllum).

The Enemy: Poinsettia (Euphorbia pulcherrima)

The Enemy: Cheat (Bromus secalinus L.)

The Enemy: Rush skeletonweed (Chondrilla juncea L.) Strategy: This perennial plant has infested several million acres in Idaho, first found in the early 1980s as a 5-acre patch near Horseshoe Bend. Stem leaves are small, inconspicuous and narrow, thus giving the plant its skeletal appearance…

The Enemy: Matgrass (Nardus stricta)

The Enemy: Longspine sandbur (Cenchrus longispinus) this warm-season native annual grass can be troublesome. It typically invades sandy areas and is mostly from the Boise area west. It grows 8 inches to 3 feet tall. At the end of the vegetative growth, this plant produces a spikelet of oval …

This weed may invade your land. Be ready to oppose it.

The Enemy: Sulfur cinquefoil (Potentilla recta)

This weed may invade your land. Be ready to oppose it.

This weed may invade your land. Be ready to oppose it.

This weed may invade your land. Be ready to oppose it.

The Enemy: Deadly nightshade (Atropa belladonna)

This weed may invade your land. Be ready to oppose it.

This weed may invade your land. Be ready to oppose it.

This weed may invade your land. Be ready to oppose it.

This weed may invade your land. Be ready to oppose it.

The Enemy: Common (European) buckthorn (Rhamnus cathartica) and glossy buckthorn (Frangula alnus [Rhamnus frangula])

This weed may invade your land. Be ready to oppose it.

The Enemy: Green foxtail (Setaria viridis)

This weed may invade your land. Be ready to oppose it.