lettuce USDA PLANTS Symbol: LASA3
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Lactuca sativa L.

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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae
Synonym(s): garden lettuce
Native Range: not known in wild (BAIL);

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s); Lettuce plants growing in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
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Plant(s); Lateral roots on lettuce seedling are few and many with blackened tips.  Soil toxin suspected (e.g., fertilizer injury, allelopathic crop residue). November 1994.
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
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Seedling(s); Lettuce seedlings.  August 1995
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
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Plant(s); A young lettuce plant growing in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
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Plant(s); A young lettuce plant growing in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); Some young lettuce plants growing in the field.
Howard F. Schwartz, Colorado State University, Bugwood.org
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Plant(s); Iceberg lettuce head ready for harvest.  January 1997
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
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Seed(s); Lettuce seeds during a seed quality inspection exercise.
Howard F. Schwartz, Colorado State University, Bugwood.org
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EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

U.S. National Parks where reported invasive:
Death Valley National Park (California)



Invasive Listing Sources:
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007