- Family:
- Asteraceae Bercht. & J.Presl
Lactuca L.

[FSOM]
M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS
- Morphology General Habit
- Herbs or subshrubs, with white latex
- Morphology Leaves
- Leaves alternate
- Morphology Reproductive morphology Inflorescences
- Capitula often in paniculate inflorescences; involucre cylindrical; receptacle naked
- Morphology Reproductive morphology Fruits
- Achenes flattened, distinctly beaked, usually with ribs; pappus of smooth or scabrid bristles.
- Distribution
- Over 100 species in Europe, Asia, Africa and North America, one widely cultivated.
[FTEA]
Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005
- Morphology General Habit
- Annual or perennial herbs or subshrubs, rarely scandent
- Morphology Leaves
- Leaves alternate or in a rosette, variable from entire to pinnatisect, often spinulose, sometimes reduced
- Morphology Reproductive morphology Inflorescences Capitulum
- Capitula in various inflorescences, generally corymbose or paniculate; phyllaries unequal, in several series, the outermost smallest; receptacle epaleate, with ± fimbriate alveolae
- Morphology Reproductive morphology Flowers Florets
- Florets with anthers sagittate at base, auricles acute or shortly setaceous-acuminate; style branches long with conspicuous sweeping hairs
- Morphology Reproductive morphology Fruits
- Achenes lengthening after anthesis, flattened, usually ribbed, generally with a distinct beak; pappus of bristles.
[FZ]
Compositae, G. V. Pope. Flora Zambesiaca 6:1. 1992
- Morphology General Habit
- Annual, perennial or biennial herbs, erect often scapigerous, sometimes scandent.
- Morphology Stem
- Stems mostly solitary and branched above, glabrous, crispate-pubescent or setulose, rarely spinescent.
- Morphology Leaves
- Leaves radical, or cauline and alternate, often auriculate-amplexicaul, undivided to deeply runcinate-pinnatisect, or rarely pinnately compound, margins entire or remotely denticulate to coarsely dentate, glabrous or crispate-pubescent to setulose, rarely spinose-setose on midribs beneath, often glaucous.
- Morphology Reproductive morphology Inflorescences Capitulum
- Capitula few to numerous, corymbose or thyrsoid-paniculate, sometimes solitary.
- Morphology Reproductive morphology Inflorescences Bracts Phyllaries
- Phyllaries 3–5-seriate, elongating in the fruiting stage.
- Morphology Reproductive morphology Flowers Receptacle
- Receptacle epaleate, alveolate; alveolae ± fimbriate.
- Morphology Reproductive morphology Flowers Corolla
- Corollas yellow whitish purplish or blue.
- Morphology Reproductive morphology Flowers Androecium Stamens Anthers
- Anthers sagittate at the base, auricles acute or shortly setaceous-acuminate.
- Morphology Reproductive morphology Flowers Gynoecium Style
- Style branches long with conspicuous sweeping hairs.
- Morphology Reproductive morphology Fruits
- Achenes homomorphic, ± ellipsoidal, ± compressed, apex constricted and produced as a distinct filamentous beak, or beak absent; achene body ribbed, minutely rugose-scabridulous, ascending-hispidulous; pappus several-seriate of uniform white or straw-coloured, barbellate setae, rarely with an outer ring of minute setae.
Native to:
Afghanistan, Alabama, Alaska, Albania, Alberta, Algeria, Altay, Amur, Angola, Arizona, Arkansas, Assam, Austria, Azores, Bahamas, Baleares, Baltic States, Belarus, Belgium, Benin, Borneo, British Columbia, Bulgaria, Burkina, Burundi, Buryatiya, California, Cambodia, Cameroon, Canary Is., Cape Provinces, Central African Repu, Central European Rus, Chad, China North-Central, China South-Central, China Southeast, Chita, Colorado, Congo, Connecticut, Corse, Cyprus, Czechoslovakia, Delaware, Denmark, District of Columbia, Dominican Republic, East Aegean Is., East European Russia, East Himalaya, Egypt, Eritrea, Ethiopia, Finland, Florida, France, Free State, Gabon, Georgia, Germany, Ghana, Great Britain, Greece, Guatemala, Guinea, Gulf of Guinea Is., Hainan, Haiti, Hungary, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Ivory Coast, Japan, Jawa, Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., KwaZulu-Natal, Labrador, Laos, Lebanon-Syria, Lesotho, Lesser Sunda Is., Liberia, Libya, Louisiana, Madagascar, Madeira, Magadan, Maine, Malawi, Mali, Manchuria, Manitoba, Maryland, Massachusetts, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Mississippi, Missouri, Mongolia, Montana, Morocco, Mozambique, Myanmar, Namibia, Nansei-shoto, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Guinea, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, Nigeria, North Carolina, North Caucasus, North Dakota, North European Russi, Northern Provinces, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Ohio, Oklahoma, Oman, Ontario, Oregon, Pakistan, Palestine, Pennsylvania, Philippines, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Rwanda, Sakhalin, Sardegna, Saskatchewan, Saudi Arabia, Sicilia, Sierra Leone, Sinai, Somalia, South Carolina, South Dakota, South European Russi, Spain, Sudan, Swaziland, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tennessee, Texas, Thailand, Tibet, Togo, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Uganda, Ukraine, Utah, Uzbekistan, Vermont, Vietnam, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe
Introduced into:
Antipodean Is., Argentina Northeast, Bangladesh, Belize, Bolivia, Botswana, Brazil South, Cape Verde, Caroline Is., Colombia, Comoros, Costa Rica, Cuba, Ecuador, El Salvador, Fiji, Gulf States, Hawaii, Honduras, Jamaica, Marianas, Marshall Is., Mauritania, Mauritius, New South Wales, New Zealand North, Nicaragua, Niue, Norfolk Is., Northern Territory, Panamá, Paraguay, Peru, Puerto Rico, Queensland, Réunion, Seychelles, South Australia, Tasmania, Trinidad-Tobago, Tristan da Cunha, Tubuai Is., Uruguay, Venezuela, Victoria, Wake I., Western Australia
- Lactuca acanthifolia (Willd.) Boiss.
- Lactuca aculeata Boiss.
- Lactuca alaica Kovalevsk.
- Lactuca alpestris (Gand.) Rech.f.
- Lactuca ambacensis (Hiern) C.Jeffrey
- Lactuca anatolica Behçet & Yapar
- Lactuca attenuata Stebbins
- Lactuca azerbaijanica Rech.f.
- Lactuca bandyopadhyana Kottaim.
- Lactuca biennis (Moench) Fernald
- Lactuca birjandica Mozaff.
- Lactuca brachyrrhyncha Greenm.
- Lactuca calophylla C.Jeffrey
- Lactuca canadensis L.
- Lactuca chitralensis (Tuisl) Ghafoor, Qaiser & Roohi Bano
- Lactuca cichorioides (Hiern) C.Jeffrey
- Lactuca corymbosa Lawalrée
- Lactuca cubanguensis (S.Moore) C.Jeffrey
- Lactuca cyprica (Rech.f.) N.Kilian & Greuter
- Lactuca czerepanovii (Kirp.) N.Kilian & Greuter
- Lactuca denaensis N.Kilian & Djavadi
- Lactuca × dichotoma Simonk.
- Lactuca dissecta D.Don
- Lactuca dolichophylla Kitam.
- Lactuca dregeana
- Lactuca dumicola S.Moore
- Lactuca erostrata Bano & Qaiser
- Lactuca fenzlii N.Kilian & Greuter
- Lactuca floridana (L.) Gaertn.
- Lactuca formosana Maxim.
- Lactuca georgica Grossh.
- Lactuca gilanica Mozaff.
- Lactuca glandulifera Hook.f.
- Lactuca glareosa Schott & Kotschy
- Lactuca glauciifolia Boiss.
- Lactuca gorganica Rech.f. & Esfand.
- Lactuca gracilipetiolata Merr.
- Lactuca graminifolia Michx.
- Lactuca haimanniana Asch.
- Lactuca hazaranensis Djavadi & N.Kilian
- Lactuca hirsuta Muhl. ex Nutt.
- Lactuca hispida DC.
- Lactuca hispidula B.Fedtsch.
- Lactuca homblei De Wild.
- Lactuca imbricata Hiern
- Lactuca indica L.
- Lactuca inermis Forssk.
- Lactuca intricata Boiss.
- Lactuca kanitziana Martelli
- Lactuca kemaliya Yild.
- Lactuca kirpicznikovii (Grossh.) N.Kilian & Greuter
- Lactuca klossii S.Moore
- Lactuca kochiana Beauverd
- Lactuca laevigata DC.
- Lactuca lasiorhiza (O.Hoffm.) C.Jeffrey
- Lactuca leucoclada Rech.f. & Tuisl
- Lactuca longespicata De Wild.
- Lactuca longidentata Moris ex DC.
- Lactuca ludoviciana (Nutt.) Riddell
- Lactuca malaissei Lawalrée
- Lactuca mansuensis Hayata
- Lactuca marunguensis Lawalrée
- Lactuca microcephala DC.
- Lactuca microsperma K.Schum.
- Lactuca morssii B.L.Rob.
- Lactuca muralis (L.) E.Mey.
- Lactuca mwinilungensis G.V.Pope
- Lactuca orientalis (Boiss.) Boiss.
- Lactuca oyukludaghensis (Parolly) N.Kilian & Parolly
- Lactuca pakistanica T.Akhtar & Chaudhri
- Lactuca palmensis Bolle
- Lactuca paradoxa Sch.Bip. ex A.Rich.
- Lactuca perennis L.
- Lactuca petrensis Hiern
- Lactuca piestocarpa (Boiss.) Sennikov
- Lactuca polyclada Boiss.
- Lactuca praecox R.E.Fr.
- Lactuca praevia C.D.Adams
- Lactuca pulchella DC.
- Lactuca pumila Rech.f. & Tuisl
- Lactuca quercina L.
- Lactuca raddeana Maxim.
- Lactuca rapunculoides (DC.) C.B.Clarke
- Lactuca rechingeriana (Tuisl) N.Kilian & Greuter
- Lactuca reviersii Litard. & Maire
- Lactuca rostrata (Blume) Kuntze
- Lactuca rosularis Boiss.
- Lactuca saligna L.
- Lactuca sativa L.
- Lactuca scarioloides Boiss.
- Lactuca schulzeana Büttner
- Lactuca schweinfurthii Oliv. & Hiern
- Lactuca serriola L.
- Lactuca setosa Stebbins ex C.Jeffrey
- Lactuca sibirica (L.) Benth. ex Maxim.
- Lactuca singularis Wilmott
- Lactuca songeensis C.Jeffrey
- Lactuca spinidens Nevski
- Lactuca stebbinsii N.Kilian
- Lactuca stipulata Stebbins
- Lactuca takhtadzhianii Sosn.
- Lactuca tatarica (L.) C.A.Mey.
- Lactuca tenerrima Pourr.
- Lactuca tetrantha B.L.Burtt & P.H.Davis
- Lactuca tinctociliata I.M.Johnst.
- Lactuca triangulata Maxim.
- Lactuca tuberosa Jacq.
- Lactuca tysonii (E.Phillips) C.Jeffrey
- Lactuca ugandensis C.Jeffrey
- Lactuca undulata Ledeb.
- Lactuca viminea (L.) J.Presl & C.Presl
- Lactuca virosa L.
- Lactuca watsoniana Trel.
- Lactuca winkleri Kirp.
- Lactuca yemensis Deflers
- Lactuca zambeziaca C.Jeffrey
Lactuca L. appears in other Kew resources:
First published in Sp. Pl.: 795 (1753)
Accepted by
- Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.
Literature
Flora of West Tropical Africa
- —F.T.A. 3: 450.
Flora Zambesiaca
- C. Jeffrey in Kew Bull. 18: 436–457, figs. 2–8 (1966).
- Gen. Pl., ed. 5: 348 (1754).
- Sp. Pl. 2: 795 (1753)
Flora of Somalia
- Flora Somalia, (2000) Author: by M. Thulin [updated by M. Thulin 2008]
Flora of Tropical East Africa
- C. Jeffrey in K.B. 18: 436 (1966)
- K. Bremer, Asteraceae Clad. & Class.: 184 (1994)
- L., Gen. Pl., ed. 5: 348 (1754)
- Sp. Pl.: 795 (1753)
-
Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0
-
Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0
-
Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0
-
Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
-
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0