- Lactuca
Taxobox
name = Lettuce
image_width = 200px
image_caption = "Lactuca tuberosa "
regnum =Plant ae
divisio = Magnoliophyta
classis =Magnoliopsida
ordo =Asterales
familia =Asteraceae
tribus =Cichorieae
genus = "Lactuca"
genus_authority = L.,1753
subdivision_ranks = Genera
subdivision = See text."Lactuca", commonly known as
lettuce , is a genus of flowering plants in the daisy familyAsteraceae . The genus includes about 100 species, distributed worldwide, but mainly in temperateEurasia .Its best-known representative is the garden lettuce ("Lactuca sativa"), with its many varieties. "Wild lettuce" commonly refers to the wild-growing cousins of common garden lettuce. Many species are common
weed s. They are annuals or perennials. Their height can vary between 10-180 cm. They form heads or capitula in panicles of yellow, brown or purple flowers in ray florets.The non-edible species may contain bitter elements. Others contain a milky juice.
"Lactuca" species are used as food plants by the
larva e of a number ofLepidoptera species - seelist of Lepidoptera that feed on lettuces .Species
*"
Lactuca abyssinica " : (Ethiopia )
*"Lactuca acanthifolia " : (Crete )
**"Lactuca acanthifolia" f. "amorgina"
**"Lactuca acanthifolia" f. "integrifolia" : (Greece ,Turkey )
*"Lactuca aculeata " : (Asia Minor )
*"Lactuca acuminata "
*"Lactuca adenophora " : (Armenia )
*"Lactuca alabamensis " : (North America )
*"Lactuca alatipes " : (India )
*"Lactuca albiflora " : (Japan )
*"Lactuca alliariaefolia " : (Korea )
*"Lactuca alpina" (also known as "Cicerbita alpina " [cite web | url = http://www.pfaf.org/database/plants.php?Cicerbita+alpina | title = Cicerbita alpina - (L.)Waller. | work = Plants for a Future ] ): (Europe )
*"Lactuca altaica " : (Altai Mountains )
*"Lactuca amagawaensis " : (Japan)
*"Lactuca ambigua " : (Europe)
*"Lactuca amoena " : (China)
*"Lactuca amorgina " : (Greece)
*"Lactuca andongensis " : (tropicalAfrica )
*"Lactuca angulata " : (North America)
*"Lactuca" × "aogashimaensis" : (Japan)
*"Lactuca arabica " : (Arabian peninsula)
*"Lactuca atlantica " : (Algeria)
*"Lactuca atropurpurea " : (China)
*"Lactuca attenuata " : (Congo)
*"Lactuca auriculata " : (Himalaya)
*"Lactuca axillaris " : (North America)
*"Lactuca azerbaijanica " : (Iran)
*"Lactuca balmesi " : (Spain)
*"Lactuca bauhini " : (France)
*"Lactuca benthamii " : (Himalaya)
*"Lactuca biauriculata " : (Korea)
*"Lactuca biennis " : Tall Blue Lettuce, Wild Blue Lettuce
*"Lactuca blinii " : (Korea)
*"Lactuca boranensis "
*"Lactuca brachyrrhyncha " (North America, Mexico)
*"Lactuca brachyrhyncha " : (China)
*"Lactuca brassicaefolia " : (Iran)
*"Lactuca brevirostris " : (East Asia)
*"Lactuca calophylla " : (East Africa)
*"Lactuca campestris "
*"Lactuca canadensis " : Canada Lettuce, Florida Blue Lettuce, Wild Lettuce (North America)
**"Lactuca canadensis" var. "albocaerulea" (North America)
**"Lactuca canadensis" f. "angustata" (North America)
**"Lactuca canadensis" var. "angustifolia" (NE USA)
**"Lactuca canadensis" f. "angustipes" (NE USA)
**"Lactuca canadensis" var. "canadensis" : Canada Lettuce
**"Lactuca canadensis" var. "elongata"
**"Lactuca canadensis" f. "exauriculata" (NE USA)
**"Lactuca canadensis" var. "laciniata" : (NE USA)
**"Lactuca canadensis" var. "latifolia" : (NE USA)
**"Lactuca canadensis" var. "montana" : (North America)
**"Lactuca canadensis" var. "spinulosa" : (North America)
**"Lactuca canadensis" f. "stenopoda" : (North America)
**"Lactuca canadensis" f. "villicaulis" : (SE USA)
*"Lactuca canescens " : (Turkestan)
*"Lactuca capensis " : (South Africa)
*"Lactuca cataonica " : (Asia Minor)
*"Lactuca cavaleriei " : (China)
*"Lactuca chelidonifolia " : (Japan)
*"Lactuca chondrillaeflora " : (Southern Europe)
*"Lactuca clarkei " : (Himalaya)
*"Lactuca coerulea " : (Austria)
*"Lactuca cooperi " : (India)
*"Lactuca cornigera " : (Morocco)
*"Lactuca corymbosa ": (Congo)
*"Lactuca crambifolia " : (Turkestan)
*"Lactuca crassifolia " : (Socotra)
*"Lactuca crepidioides " : (China)
*"Lactuca cretica " : (Crete)
*"Lactuca deasyi " : (China)
*"Lactuca debilis " : (Japan)
*"Lactuca decorticata " : (Mediterranean)
*"Lactuca deggeleriana " : (Switzerland)
*"Lactuca deltoidea " : (Caucasus)
*"Lactuca denticulata " : (Japan)
*"Lactuca dissecta " : (Himalaya)
*"Lactuca diversifolia " : (China)
*"Lactuca dracoglossa " : (Japan)
*"Lactuca dregeana " : (South Africa)
*"Lactuca dubyaea " : (Himalaya)
*"Lactuca dunlapii " : (Cameroun)
*"Lactuca eburnea " : (Rhodos)
*"Lactuca edelbergii " : (Afghanistan)
*"Lactuca elgonensis " : (Uganda)
*"Lactuca elongata "
*"Lactuca erythrocarpa " : (China)
*"Lactuca fischeriana " : (Siberia)
*"Lactuca fistulosa " : (North America)
*"Lactuca flavissima " : (China)
*"Lactuca floridana " : Florida Lettuce, Woodland Lettuce
*"Lactuca forrestii " : (China)
*"Lactuca forsteniana " : (Sulawesi)
*"Lactuca funebris " : (China)
*"Lactuca georgica " : (Georgia, Caucasus)
*"Lactuca gilletii " : (tropical Africa)
*"Lactuca glabra " : (China)
*"Lactuca glandulifera " : (tropical Africa)
*"Lactuca glareosa " : (China)
*"Lactuca glauciifolia " : (Iran)
*"Lactuca gombalana " : (China)
*"Lactuca goraeensis " : (tropical Africa)
[
Lactuca tatarica "]
*"Lactuca gracilipetiolata " : (Myanmar)
*"Lactuca graeca " : (Greece)
*"Lactuca graminifolia " : Grass-leaf Lettuce, Grassleaf Lettuce (SE USA)
**"Lactuca graminifolia" var. "arizonica" : (Arizona, Texas, New Mexico)
**"Lactuca graminifolia" var. "mexicana " : (Mexico, Guatemala)
*"Lactuca grandicolla " : (Japan)
*"Lactuca grenieri " : (France)
*"Lactuca grosii " : (Spain)
*"Lactuca haimanniana " : (North Africa)
*"Lactuca hallaisanensis " ; (Korea)
*"Lactuca henryi " : (China)
*"Lactuca herbanica " : (Canary Islands)
*"Lactuca heyneana " : (India)
*"Lactuca hirsuta " : Hairy Lettuce (NE USA)
**"Lactuca hirsuta" f. "calvifolia" : (NE USA)
**"Lactuca hirsuta" var. "genuina"
**"Lactuca hirsuta" f. "indivisa" : (SE USA)
*"Lactuca hispida " : (Asia Minor)
*"Lactuca hoatiensis " : (Korea)
*"Lactuca holophylla " : (Nigeria)
*"Lactuca homblei " : (Congo)
*"Lactuca humilis " : (Ethiopia)
*"Lactuca imbricata " : (tropical Africa)
*"Lactuca" × "impura" : (Morocco)
*"Lactuca indica " : Indian Lettuce
*"Lactuca inermis " : (Arabian peninsula)
*"Lactuca integra " : (Philippines)
*"Lactuca integrifolia " : (North America)
*"Lactuca intricata " : (Asia Minor)
*"Lactuca intricatissima " : (Afghanistan)
*"Lactuca intybacea " : (Nicaragua)
*"Lactuca jamaicensis " : (Caribbean)
*"Lactuca japonica " : (Japan)
*"Lactuca kanitziana " : (Borneo)
*"Lactuca kashmiriana " : (India)
*"Lactuca kawaguchii " : (Tibet)
*"Lactuca keiskeana " : (Japan)
*"Lactuca kenyaensis " : (Kenya)
*"Lactuca khorasanica " : (Iran)
*"Lactuca klossii " : (SE Asia)
*"Lactuca koelzii " : (Afghanistan)
*"Lactuca kossinskyi " : (Siberia)
*"Lactuca kossmatii " : (tropical Africa)
*"Lactuca kouyangensis " : (China)
*"Lactuca lacerrima " : (China)
*"Lactuca lactucarii " : (France)
*"Lactuca lahulensis " : (India)
*"Lactuca lamii " : (New Guinea)
*"Lactuca lebrunii " : (Congo)
*"Lactuca leptocephala " : (Congo)
*"Lactuca lessertiana " : (Himalaya)
*"Lactuca leucoclada " : (Afghanistan)
*"Lactuca longespicata " : (Congo)
*"Lactuca lignea " : (China)
*"Lactuca longifolia " : (Himalaya)
*"Lactuca longirostra " : (Japan)
*"Lactuca ludoviciana " : Biannual Lettuce, Louisiana Lettuce, Wild Lettuce (NW America)
*"Lactuca luzonica " : (Philippines)
*" [Lactuca macrophylla " : (North America)
*"Lactuca macrorhiza " : (Himalaya)
*"Lactuca macroseris " : (tropical Africa)
*"Lactuca maculata "
*"Lactuca malaissei " : (Congo)
*"Lactuca maritima " : (North America)
*"Lactuca marunguensis " : (Congo)
*"Lactuca massaviensis " : (NE Africa, Arabia)
*"Lactuca matsumurae " : (Japan)
*"Lactuca microcephala " : (Asia Minor)
*"Lactuca microsperma " : (New Guinea)
*"Lactuca morssii " : Morss' Lettuce (NE USA)
*"Lactuca mulgedioides " : (Kurdistan)
*"Lactuca mulsanti " : (Spain)
*"Lactuca multipes " : (China)
*"Lactuca muralis " : (Europe)
*"Lactuca mwinilungensis " : (Zambia)
*"Lactuca nakaiana " : (Korea)
*"Lactuca nana " : (tropical Africa)
*"Lactuca napifera " : (China)
*"Lactuca numidica " : (Algeria)
*"Lactuca nummularifolia " : (Korea)
*"Lactuca nuristanica " : (Afghanistan)
*"Lactuca oblongifolia " : (North America)
*"Lactuca orientalis " : (Himalaya)
*"Lactuca ovatifolia " : (North America)
*"Lactuca pakistanica " : (Pakistan)
*"Lactuca pallidicoerulea " : (South Africa)
*"Lactuca palmensis " : (Canary Islands)
*"Lactuca paradoxa " : (Ethiopia)
*"Lactuca parishii " : (Thailand)
*"Lactuca paulayana " : (Socotra)
*"Lactuca perennis " : (Southern Europe)
*"Lactuca persica " : (Iran)
*"Lactuca petrensis " : (tropical Africa)
*"Lactuca picridiformis " : (Pakistan)
*"Lactuca pilosa " : (North America)
*"Lactuca plumieri " : (France)
*"Lactuca polycephala " : (India, Myanmar)
*"Lactuca polyclada " : (Iran)
*"Lactuca polyphylla " : (NW USA)
*"Lactuca praecox " : (Zimbabwe)
*"Lactuca prattii " : (China)
*"Lactuca procera "
*"Lactuca procumbens " : (India)
*"Lactuca prolixa " : (New Guinea)
*"Lactuca pseudo-sonchus " : (China)
*"Lactuca pseudoumbrella " : (Himalaya)
*"Lactuca pulchella " (NW America)
*"Lactuca pumila " : (Afghanistan)
*"Lactuca pygmaea " : (Java)
*"Lactuca pyrenaica "
*"Lactuca quercina " : (Southern Europa, Caucasus)
*"Lactuca quercus " : (Korea)
*"Lactuca querna " : (Caspian Sea)
*"Lactuca racemosa " : (Armenia)
*"Lactuca raddiana " : (Japan)
*"Lactuca ramosissima " : (France)
*"Lactuca rapunculoides " : (Himalaya)
*"Lactuca rariflora " : (Ethiopia)
*"Lactuca repens " : (Japan)
*"Lactuca retrorsidens " : (Borneo)
*"Lactuca reviersiana " : (Morocco)
*"Lactuca reviersii " : (Morocco)
*"Lactuca riparia " : (Thailand)
*"Lactuca rogersii " : (Madagascar)
*"Lactuca rosularis " : (Iran)
*"Lactuca rubrolutea " : (China)
*"Lactuca sagittata " : (Southern Europe, Asia Minor)
*"Lactuca salehensis " : (tropical Africa)
*"Lactuca saligna " : Willow-leaf Lettuce, Willowleaf Lettuce (Europe, North Africa, Asia Minor)
*"Lactuca sanguinea "
*"Lactuca sassandrensis " : (Ivory Coast)
*"Lactuca sativa " : Garden Lettuce, Lettuce
*"Lactuca scandens " : (China)
*" [Lactuca scariola " : (Europe)
*"Lactuca scarioloides " : (Iran)
*"Lactuca schulzeana " : (Angola)
*"Lactuca schweinfurthii " : (tropical Africa)
*"Lactuca scoparia " : (Afghanistan)
*"Lactuca semibarbata " : (Congo)
*"Lactuca senecio " : (Korea)
*"Lactuca sereti " : (tropical Africa)
*"Lactuca serratifolia " : (Spain)
*"Lactuca serriola " : Prickly Lettuce, China Lettuce, Wild Lettuce (Southern Europe)
*"Lactuca seticuspis " : (Syria)
*"Lactuca setosa " : (tropical Africa)
*"Lactuca sibirica " : (Siberia)
*"Lactuca sonchifolia " : (Europe)
*"Lactuca sonchoides " : (Asia Minor)
*"Lactuca songeensis " : (Tanzania)
*"Lactuca soongarica "
*"Lactuca souliei " : (China)
*"Lactuca spicata "
*"Lactuca spinidens " : (Siberia)
*"Lactuca stebbinsii " : (Angola)
*"Lactuca steelei " : (North America)
*"Lactuca stenocephala " : (Nigeria)
*"Lactuca stipulata " : (Congo)
*"Lactuca stolonifera " : (Japan)
*"Lactuca sylvatica " : (NW USA)
*"Lactuca taitoensis " : (China)
*"Lactuca taliiensis " : (China)
*"Lactuca taquetii " : (Korea)
*"Lactuca taraxacifolia " : (tropical Africa)
*"Lactuca taraxacum " : (Korea)
*"Lactuca tatarica " : Blue Lettuce, Chickory Lettuce, Russian Blue Lettuce (Asia, India)
*"Lactuca tenerrima " : (Southern Europe, Morocco)
*"Lactuca terrae-novae " : Newfoundland Lettuce (Newfoundland)
*"Lactuca tetrantha " : (Cyprus)
*"Lactuca thibetica " : (China)
*"Lactuca thirionni " : (China)
*"Lactuca thunbergii " : (Japan)
*"Lactuca tinctociliata " : (Angola)
*"Lactuca tricostata " : (tropical Africa)
*"Lactuca trifida " : (China)
*"Lactuca triquetra " : (Syria)
*"Lactuca tsarongensis " : (Tibet)
*"Lactuca tuberosa " : (Guinea)
*"Lactuca ugandensis " : (Congo, Uganda)
*"Lactuca umbellata " : (New Guinea)
*"Lactuca undulata " var. "albicaulis " : (China)
*"Lactuca vanderysti " : (Congo)
*"Lactuca vanensis " : (Armenia)
*"Lactuca vaniotii " : (Korea)
*"Lactuca varianii " : (Angola)
*"Lactuca verdickii " : (tropical Africa)
*"Lactuca villosa "
*"Lactuca viminea ": (Mediterranean)
*"Lactuca virosa ": Wild Lettuce, Bitter Lettuce (Europe)
*"Lactuca visianii " : (Europe)
*"Lactuca wallichiana " : (Afghanistan, Nepal)
*"Lactuca watsoniana " : (Azores)
*"Lactuca welwitschii " : (Madagascar, Angola)
*"Lactuca wilhelmsiana " : (Armenia)
*"Lactuca yemensis " : (Arabian peninsula)
*"Lactuca zambeziaca " : (Angola, Zambia)Footnotes
External links
* [http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?609,1466 Jepson Manual Treatment]
* [http://plants.usda.gov/java/profile?symbol=LACTU USDA Plants Profile: North American Species]
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