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This genus is accepted, and its native range is U.S.A. to Central America, Hawaiian Islands, Bolivia to S. South America.
Argemone sp.

[FSOM]

M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Herbs, sometimes perennial and shrubby
Morphology Leaves
Leaves sessile, pinnately lobed or incised with a dentate prickly margin
Morphology Reproductive morphology Flowers
Flowers terminal or arranged in cymes
Morphology Reproductive morphology Flowers Calyx
Sepals (2–)3(–6)
Morphology Reproductive morphology Flowers Corolla
Petals usually white or yellow and in 2 whorls of 3
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels (3–)4–6(–7), the stigmatic lobes same number as carpels and opposite the placentas
Morphology Reproductive morphology Fruits
Capsule opening by means of valves.
Distribution
Genus of 33 species in America, the West Indies and on Hawaii, one now a pantropical weed.

[FTEA]

Papaveraceae, G. L. Lucas (East African Herbarium). Flora of Tropical East Africa. 1962

Morphology General Habit
Annual or biennial herbs, sometimes perennial and shrubby
Morphology Stem
Stems glaucous, erect to 1.5 m. high, unarmed to prickly
Morphology Leaves
Leaves glaucous, sessile, pinnately lobed or incised with a dentate prickly margin, and often the surface prickly
Morphology Reproductive morphology Flowers
Flowers large, terminal or cymose
Morphology Reproductive morphology Flowers Calyx
Sepals (2–)3(–6) with a subterminal terete horn ; outer surface usually sparsely prickly
Morphology Reproductive morphology Flowers Corolla
Petals 6, normally in 2 whorls of 3, usually white or yellow
Morphology Reproductive morphology Flowers Androecium Stamens
Anthers basifixed ; filaments filiform
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels (3–)4–6(–7) ; stigmatic lobes same number as carpels and opposite the placentas
Morphology Reproductive morphology Fruits
Capsule opening by means of valves
Morphology Reproductive morphology Seeds
Seeds brown-black, up to 3 mm. in diameter ; embryo larger than in other genera, i.e. about 2/3 seed-length.

[FZ]

Papaveraceae, A. W. Exell. Flora Zambesiaca 1:1. 1960

Morphology General Habit
Annual or biennial herbs (rarely perennial and somewhat shrubby) with yellow latex.
Morphology Leaves
Leaves pinnate-lobed or incised, usually spiny.
Morphology Reproductive morphology Flowers Calyx
Sepals 3, horned at the apex.
Morphology Reproductive morphology Flowers Corolla
Petals 6.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens numerous.
Morphology Reproductive morphology Flowers Gynoecium Carpels
Carpels 3 (4–6); stigmas the same number as the carpels and alternating with the placentas.
Morphology Reproductive morphology Fruits
Capsule usually spiny.

Native to:

Alabama, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Belize, Bolivia, California, Chile Central, Chile North, Colorado, Ecuador, El Salvador, Florida, Georgia, Guatemala, Haiti, Hawaii, Honduras, Idaho, Kansas, Louisiana, Mexican Pacific Is., Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Mississippi, Montana, Nebraska, Nevada, New Mexico, Nicaragua, North Carolina, North Dakota, Oklahoma, Oregon, Paraguay, Peru, South Carolina, South Dakota, Texas, Uruguay, Utah, Wyoming

Introduced into:

Angola, Arkansas, Aruba, Ascension, Assam, Bahamas, Bangladesh, Benin, Bermuda, Botswana, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cameroon, Canary Is., Cape Provinces, Cape Verde, Cayman Is., China Southeast, Colombia, Connecticut, Costa Rica, Cuba, Czechoslovakia, Djibouti, Dominican Republic, East Himalaya, Egypt, Eritrea, Ethiopia, Fiji, France, Free State, French Guiana, Galápagos, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Illinois, India, Indiana, Iran, Ivory Coast, Jamaica, Jawa, Kentucky, Kenya, KwaZulu-Natal, Laccadive Is., Lebanon-Syria, Leeward Is., Lesotho, Lesser Sunda Is., Liberia, Madeira, Malawi, Malaya, Maldives, Mali, Maluku, Maryland, Massachusetts, Mauritania, Mauritius, Michigan, Missouri, Morocco, Mozambique, Myanmar, Namibia, Nepal, Netherlands Antilles, New Caledonia, New Guinea, New Jersey, New South Wales, New York, New Zealand North, New Zealand South, Nicobar Is., Niger, Nigeria, Niue, Norfolk Is., Northern Provinces, Northern Territory, Oman, Ontario, Pakistan, Palestine, Pennsylvania, Philippines, Puerto Rico, Queensland, Rodrigues, Rwanda, Réunion, Saudi Arabia, Senegal, Sierra Leone, Socotra, Somalia, South Australia, Southwest Caribbean, Sri Lanka, St.Helena, Sudan, Sulawesi, Suriname, Swaziland, Taiwan, Tanzania, Tasmania, Tennessee, Togo, Transcaucasus, Trinidad-Tobago, Turks-Caicos Is., Uganda, Uzbekistan, Venezuela, Venezuelan Antilles, Vermont, Victoria, Vietnam, Virginia, West Himalaya, Western Australia, Windward Is., Yemen, Zaïre, Zimbabwe

Argemone L. appears in other Kew resources:

First published in Sp. Pl.: 508 (1753)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.

Literature

Flora of West Tropical Africa

  • —F.T.A. 1: 54.

Flora Zambesiaca

  • Gen. Pl. ed. 5: 225 (1754).
  • Sp. Pl. 1: 508 (1753)

Flora of Somalia

  • Flora Somalia, Vol 1, (1993) Author: by M. Thulin [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • L., Gen. Pl., ed. 5 : 225 (1754)
  • Ownbey in Mem. Torr. Bot. Club 21(1) : 21 (1958)
  • Prain in J.B. 33 : 130 (1895)
  • Sp. Pl. : 508 (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 2021. 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 2021. 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

Kew Science Photographs
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/