Weeds and Their Control: Quackgrass (Agropyron repens)
A rough looking cool weather perennial, quackgrass is a native of Europe, Asia and northwest Africa that was introduced into the United States for forage or as a contaminant in…
A rough looking cool weather perennial, quackgrass is a native of Europe, Asia and northwest Africa that was introduced into the United States for forage or as a contaminant in…
Common sorrel is a short-lived perennial weed also known as sheep sorrel and red sorrel. It is a native of Europe and Asia and probably came to America in the…
Redroot pigweed is a summer annual native to tropical America but grows throughout the United States including Alaska and Hawaii and is considered a noxious weed in some states. It…
The origin of jimsonweed is unclear; it may have come from tropical Asia or America but is now found throughout the world including most of the United States. It is…
The origins of prickly sida are obscure but the general feeling is that the plant is a native of tropical America. It has spread to many semi-tropical and tropical areas…
There are many kinds of crabgrass but the two that are the most prevalent in the United States are smooth crabgrass and large crabgrass. They are very similar in appearance…
Peppercorn is an annual native to North American and found all over the United States including Alaska and Hawaii. A relative of the mustard family it is related to broccoli,…
Black nightshade is a native of Europe and Asia but is found in the United States primarily along the West Coast. It is an annual or short-lived perennial that grows…
A native of Europe and Asia, common mallow is a spreading annual or biennial found throughout the United States. It is a relative of hollyhocks, cotton, okra and hibiscus and…
Wild mustard is an annual weed native to Europe and Asia but is wide spread in North American and can be found in throughout the United States. It prefers full…