Agricultural pest management

Weed Photo Gallery,
with common and scientific names

(Reviewed 4/17, updated 4/17)

In this Guideline: More about weeds in lettuce:

Common names link to pages with weed descriptions and photos, up to 100K, often showing several stages of development.

Common Name Scientific Name
Barnyardgrass Echinochloa crus-galli
Bluegrass, annual Poa annua
Burclover, California Medicago polymorpha
Canarygrasses Phalaris spp.
Chickweed, common Stellaria media
Crabgrasses Digitaria spp.
Cupgrasses Eriochloa spp.
Fiddlenecks Amsinckia spp.
Goosefoot, nettleleaf Chenopodium murale
Groundcherries Physalis spp.
Groundsel, common Senecio vulgaris
Henbit Lamium amplexicaule
Junglerice Echinochloa colona
Knotweed, common Polygonum arenastrum
Lambsquarters, common Chenopodium album
Lettuce, prickly Lactuca serriola
Mallows Malva spp.
Mustards Brassica spp.
Nettle, burning Urtica urens
Nightshade, hairy Solanum sarrachoides
Nutsedge, purple Cyperus rotundus
Nutsedge, yellow Cyperus esculentus
Oat, wild Avena fatua
Pigweeds Amaranthus spp.
Purslane, common Portulaca oleracea
Rocket, London Sisymbrium irio
Shepherd's-Purse Capsella bursa-pastoris
Sowthistles Sonchus spp.
Sweetclovers Melilotis spp.
Swinecress, lesser Lepidium didymum


[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Lettuce
UC ANR Publication 3450


R. F. Smith, UC Cooperative Extension, Monterey County
S. A. Fennimore, Weed Science/Plant Sciences, UC Davis/Salinas
M. LeStrange, UC Cooperative Extension, Tulare County

Acknowledgment for contributions to Weeds:
D. W. Cudney, Botany, UC Riverside
W. E. Bendixen, UC Cooperative Extension, Santa Barbara County
C. E. Bell, UC Cooperative Extension, San Diego County
W. T. Lanini, Weed Science/Plant Sciences, UC Davis

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