Lactuca
From Wikipedia, the free encyclopedia
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Lactuca tuberosa
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Lactuca, commonly known as lettuce, is a genus of flowering plants in the Sunflower family Asteraceae. The genus includes about 100 species, distributed worldwide, but mainly in temperate Eurasia.
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 weeds. 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 larvae of a number of Lepidoptera species - see list of Lepidoptera that feed on lettuces.
[edit] Species
- Lactuca abyssinica : (Ethiopia)
- Lactuca acanthifolia : (Crete)
- Lactuca aculeata : (Asia Minor)
- Lactuca acuminata
- Lactuca adenophora : (Armenia)
- Lactuca alabamensis : (North America)
- Lactuca alatipes : (India)
- Lactuca albiflora : (Japan)
- Lactuca alliariaefolia : (Korea)
- Lactuca alpina : (Europe)
- Lactuca altaica : (Altai Mountains)
- Lactuca amagawaensis : (Japan)
- Lactuca ambigua : (Europe)
- Lactuca amoena : (China)
- Lactuca amorgina : (Greece)
- Lactuca andongensis : (tropical Africa)
- 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 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)