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Winter Annual Weed Seedlings You May See

On this page
  • Annual bluegrass
  • Common checkweed
  • Common groundsel
  • Little mallow
  • Sheperd's-purse
  • Prickly lettuce
  • Swinecress
  • Henbit

Names link to more information on identification and biology.

Click on photos to enlarge
In all California grape-growing regions

Annual bluegrass seedling.
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.

Chickweed seedling.
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.
Seedling of common groundsel, Senecio vulgaris.
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, Malva parviflora, seedling.
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.

Seedling of prickly lettuce, Lactuca serriola.
Prickly lettuce
(Lactuca scariola): Sunflower family; winter annual or biennial; seed leaves about 2 times longer than wide; first true leaves with rounded margins.

Shepherd's-purse seedling.
(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.
(Coronopus didymus): Mustard family; winter annual; seed leaves light green, narrow, long, widest at tip; first true leaves club shaped with two notches (teeth) around margin; leaves and stems slightly hairy; distinct skunk-like odor.

All regions except Coachella Valley:
Henbit seedling, Lamium amplexicaule.
(Lamium aplexicaule): Mint family; winter annual; seedling leaves small, oblong, with smooth margins; first true leaves rounded, coarsely toothed, with visible netted veins.

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