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Lactuca virosa. Lactuca virosa is a plant in the Lactuca (lettuce) genus, often ingested for its mild analgesic and sedative effects. [2] It is related to common lettuce (), and is often called wild lettuce, bitter lettuce, laitue vireuse, opium lettuce, poisonous lettuce, tall lettuce, great lettuce [3] or rakutu-karyumu-so.
The standard definition of lactucarium in these codices required its production from Lactuca virosa, but it was recognized that smaller quantities of lactucarium could be produced in a similar way from Lactuca sativa and Lactuca canadensis var. elongata, and even that lettuce-opium obtained from Lactuca serriola or Lactuca quercina was of ...
Wild lettuce is a common name for several lactucarium-containing plants related to lettuce (Lactuca sativa). The name most often refers to Lactuca virosa (Europe, Asia, introduced to North America), though it may also refer to: Lactuca canadensis (North America) Lactuca ludoviciana (NW America) Lactuca serriola (Southern Europe) Lactuca ...
Lactuca, commonly known as lettuce, is a genus of flowering plants in the family Asteraceae. The genus includes at least 50 species, distributed worldwide, but mainly in temperate Eurasia . Its best-known representative is the garden lettuce ( Lactuca sativa ), with its many varieties.
Lactuca serriola is the wild progenitor of cultivated lettuce (Lactuca sativa) and can be affected by lettuce downy mildew, one of the most serious diseases of lettuce. [12] L. serriola has shown resistance to the plant pathogen Bremia lactucae, the cause of the disease. [12]
Lactuca sativa is a member of the Lactuca (lettuce) genus and the Asteraceae (sunflower or aster) family. [5] The species was first described in 1753 by Carl Linnaeus in the second volume of his Species Plantarum. [6] Synonyms for L. sativa include Lactuca scariola var. sativa, [1] L. scariola var. integrata and L. scariola var. integrifolia. [7]
Tall lettuce is a common name for several plants related to lettuce (Lactuca sativa) and may refer to: Lactuca virosa, native to Europe and Asia, introduced to North America; Lactuca canadensis, native to North America
Lactuca viminea; Lactuca virosa; W. Lactuca watsoniana; Wild lettuce This page was last edited on 11 November 2018, at 11:38 (UTC). Text is available under the ...