UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

SKIP navigation

 

Grape

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.

Seedling of redstem 
				filaree, Erodium cicutarium, at the two-leaf stage.
Redstem filaree
(Erodium cicutarium): Geranium family; winter annual; seed leaves deeply 3- to 4-lobed, center lobe largest; first true leaf deeply lobed and covered with white hairs; young leaves alternate or opposite and also deeply lobed.
Shepherd's-purse seedling.
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.

Swinecress
Swinecress
(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.

Whitestem 
				filaree seedling.
Whitestem filaree
(Erodium moschatum): Geranium family; winter annual or biennial; seed leaves 3- to 4-lobed, center lobe largest; true leaves arranged as opposite or alternate; leaves and stems bristly and hairy.

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

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2014 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   /PMG/C302/mt302rpwntrannlwds.html revised: January 8, 2014. Contact webmaster.