Weeds and Their Control: Black Nightshade (Solanum nigrum)
Karen 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…
Weeds and Their Control: Common Mallow (Malva neglecta)
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…
Weeds and Their Control: Wild Mustard (Brassica kaber aka Sinapsis arvensis)
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…
Weeds and Their Control: Prickly Lettuce (Lactuca serriola)
An annual or biennial, prickly lettuce is a native of Eurasia but found throughout the United States. It prefers a sunny site with mesic to dry soil, and is especially…
Weeds and Their Control: Spiny Sowthistle (Sonchus asper)
A native of Europe, spiny sow thistle is a common annual weed throughout the United States. It thrives in sun and can be found in gardens, lawns, pastures, and waste…
Weeds and Their Control: Common Vetch (Vicia sativa)
Common vetch is climbing annual vine brought to North American from southern Europe as a covercrop but has since escaped and become a troublesome weed in shrub and perennial beds…
Weeds and Their Control: Horseweed (Conyza canadensis)
Also known has Canadian Fleabane, Coltstail, Marestail and Butterweed, horseweed is found throughout to North and Central America where it grows along road sides, and in waste areas, meadows, fields,…
Weeds and Their Control: Common Cinquefoil (Potentilla simplex)
Common cinquefoil, also known as oldfield cinquefoil, is a low growing perennial that resembles a strawberry plant with yellow flowers. It is native to tall grass prairies but is now…
Weeds and Their Control: Poison Hemlock (Conium maculatum)
The name “poison hemlock” conjures up visions of Socrates drinking his fatal brew as shown by the French painter Jacques-Louis David. A brew containing poison hemlock was given to condemned…