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Prune

Winter Annual Weeds You May See

Names link to more information on identification and biology.

Click on photos to enlarge
Annual bluegrass.
Annual bluegrass
(Poa annua): Grass family; winter annual; leaf tip shaped like bow of a boat; membranous ligule rounded with slightly pointed tip; leaf blade crinkled at midsection.
Common chickweed.
Common chickweed
(Stellaria media): Pink family; winter annual; seed leaves with prominent midveins, about 4 times longer than wide, tapering to point at tip; true leaves broader, opposite, and yellow-green.
Common groundsel.
Common groundsel
(Senecio vulgaris): Sunflower family; winter annual; seed leaves narrow, with blunt narrow tip; first true leaves with shallow teeth; third and fourth leaves more deeply lobed.
Little mallow (Cheeseweed).
Little mallow (cheeseweed)
(Malva parviflora): Mallow family; winter annual; seed leaves heart shaped, sometimes with red tinge; true leaves roundish with wavy, shallow-toothed margins.
Prickly lettuce.
Prickly lettuce
(Lactuca serriola): Sunflower family; winter annual or biennial; seed leaves about 2 times longer than wide; first true leaves with rounded margins.
Sherpherd's-purse.
Shepherd's-purse
(Capsella bursa-pastoris): Mustard family; winter annual; seed leaves pale green with tiny granules on surface; first true leaves with smooth margins; fourth and later leaves may be indented; true leaves covered with star-shaped hairs.

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