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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 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]
Lactuca virosa. Lactucarium: Lagochilin. Lagochilus inebrians. Lagochilin is thought to be responsible for the sedative, hypotensive and hemostatic effects of this plant. [citation needed] Pukateine. Laurelia novae-zelandiae. Pukateine: Unknown Rollinia mucosa. Rollinia mucosa is said to be a narcotic. [123] Leonurine. Leonotis leonurus
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]
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