Weeds and Their Control: Pilewort (Erechtites hieraciifolius )
Karen Also called burnweed and fireweed, pilewort is a summer annual native to the Americas but has been spread around the world. As the name implies, the plant profits from fire…
Weeds and Their Control: Black Medic (Medicago lupulina)
Black medic is an annual or short lived perennial weed that is actually beneficial. Its roots have the ability to take nitrogen from the air and put it in the…
Weeds and Their Control: Annual Bluegrass (Poa annua)
A native of Europe, annual bluegrass is widespread in the United States occurring in all states including Alaska and Hawaii In mild climates it grows from fall to spring and…
Weeds and Their Control: Purslane (Portulaca oleracea)
The origin of purslane is somewhat obscure. It appears to be indigenous to North Africa, the Middle East, and parts of Asia but archaeological evidence suggests that it may have…
Weeds and Their Control: Shepherd’s Purse (Capsella bursa-pastoris)
A native of Europe and Asia Minor, shepard’s purse is a winter or summer annual that has spread throughout the United States including Alaska and Hawai. It is a member…
Weeds and Their Control: Velvetleaf (Abutilon theophrasti)
A native of southern Asia, velvetleaf is also known as Indian mallow. It was introduced into North American in the 1700s and is now found throughout the US. It is…
Weeds and Their Control: Prostrate Spurge (Euphorbia supina)
Looking at this pesky annual weed you would never know that it is in the same genus as pointsetta. A native of eastern United States, this warm weather weed has…
Weeds and Their Control: Hairy Galinsoga (Galinsoga ciliata)
Hairy galinsoga is an annual weed that is native to Mexico and South America but is now found on the east, mid-west, and west coast of the United States. It…
Weeds and Their Control: Common Ragweed (Ambrosia artemisiifolia)
The bane of every hay fever sufferer, common ragweed is a summer annual native to North America and is found throughout the United States including Hawaii but not Alaska. It…
Weeds and Their Control: Giant Foxtail Grass (Setaria faberi)
Giant foxtail was introduced into North America from East Asia in the 1930s and is now a common weed in the eastern half of the United States especially in the…