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This genus is accepted, and its native range is Tropics & Subtropics.

[FZ]

Rubiaceae, B. Verdcourt. Flora Zambesiaca 5:1. 1989

Morphology General Habit
Annual or perennial herbs or rarely subshrubs, the stems erect or prostrate, simple or branched, or rarely cushion-herbs.
Morphology Leaves
Leaves opposite; stipules with 1-several fimbriae from a short base which is often adnate to the leaf base.
Morphology Reproductive morphology Flowers
Flowers mostly small, hermaphrodite, heterostylous or isostylous, in terminal or axillary lax or dense inflorescences or sometimes fasciculate or solitary at the nodes.
Morphology Reproductive morphology Flowers Calyx
Calyx lobes 4 (rarely more), mostly small, equal, narrowly to broadly triangular.
Morphology Reproductive morphology Flowers Corolla
Corolla tube usually short, cylindrical; lobes 4; throat often hairy.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens enclosed or exserted.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-locular; ovules mostly numerous on peltate placentas; style short or long, included or exserted, filiform; stigma lobes linear to subglobose.
Morphology Reproductive morphology Fruits
Capsule subglobose to oblong, usually with a loculicidally dehiscent beak.
Morphology Reproductive morphology Seeds
Seeds mostly numerous, angular or subglobose, smooth or alveolate, often becoming viscid when moistened; testa cells smooth to distinctly punctate, granular or tuberculate.

[FSOM]

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

Morphology General Habit
Annual or perennial herbs or subshrubs
Morphology Leaves Stipules
Stipules with usually 1–several slender fimbriae from a short base
Morphology Reproductive morphology Inflorescences
Flowers bisexual, often heterostylous, in terminal or axillary lax or dense inflorescences or sometimes clustered or solitary at the nodes
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes 4
Morphology Reproductive morphology Flowers Corolla
Corolla-tube normally short, cylindrical, often hairy in throat; lobes 4, valvate in bud
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, included or exserted
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2-celled; ovules ± numerous on peltate placentas inserted near the middle of the septum; style slender, included or exserted; stigma-lobes linear to subglobose
Morphology Reproductive morphology Fruits
Capsule loculicidally dehiscent
Morphology Reproductive morphology Seeds
Seeds angular to subglobose, smooth or reticulate.
Distribution
Genus with an estimated 200 species, but true number probably lower, widespread in the tropics.

[FTEA]

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Annual or perennial herbs or rarely subshrubs, the stems erect or prostrate, simple or branched, or rarely cushion-herbs
Morphology Leaves
Leaves opposite; stipules with 1–several fimbriae from a short base which is often adnate to the leaf-base
Morphology Reproductive morphology Flowers
Flowers mostly small, hermaphrodite, heterostylous or isostylous, in terminal or axillary lax or dense inflorescences or sometimes fasciculate or solitary at the nodes
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes 4 (rarely more), mostly small, equal, narrowly to broadly triangular
Morphology Reproductive morphology Flowers Corolla
Corolla-tube usually short, cylindrical; lobes 4; throat often hairy
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens enclosed or exserted
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-locular; ovules mostly numerous on peltate placentas; style short or long, included or exserted, filiform; stigma-lobes linear to subglobose
Morphology Reproductive morphology Fruits
Capsule subglobose to oblong, usually with a loculicidally dehiscent beak
Morphology Reproductive morphology Seeds
Seeds mostly numerous, angular or subglobose, smooth or alveolate, often becoming viscid when moistened; testa-cells smooth to distinctly punctate or granular.

Native to:

Alabama, Aldabra, Algeria, Andaman Is., Angola, Argentina Northeast, Arkansas, Assam, Bangladesh, Benin, Bolivia, Borneo, Botswana, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Burkina, Burundi, Cabinda, Cambodia, Cameroon, Cape Provinces, Cape Verde, Caprivi Strip, Caroline Is., Central African Repu, Chad, Chile Central, China South-Central, China Southeast, Colombia, Comoros, Congo, Cuba, Djibouti, Dominican Republic, East Himalaya, Egypt, Equatorial Guinea, Eritrea, Ethiopia, Fiji, Florida, Free State, French Guiana, Gabon, Gambia, Georgia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Guyana, Hainan, Haiti, India, Iran, Ivory Coast, Jawa, Juan Fernández Is., Kenya, Korea, KwaZulu-Natal, Laccadive Is., Laos, Lebanon-Syria, Lesotho, Liberia, Louisiana, Madagascar, Malawi, Malaya, Maldives, Mali, Maluku, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mississippi, Morocco, Mozambique, Myanmar, Namibia, Nepal, New Caledonia, New Guinea, Nicobar Is., Niger, Nigeria, North Carolina, Northern Provinces, Northern Territory, Ogasawara-shoto, Oklahoma, Oman, Pakistan, Palestine, Paraguay, Peru, Philippines, Queensland, Rodrigues, Rwanda, Réunion, Saudi Arabia, Senegal, Sierra Leone, Socotra, Somalia, South Carolina, South China Sea, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Taiwan, Tanzania, Tennessee, Texas, Thailand, Togo, Tonga, Transcaucasus, Uganda, Uruguay, Vanuatu, Venezuela, Vietnam, Virginia, West Himalaya, Western Australia, Yugoslavia, Zambia, Zaïre, Zimbabwe

Extinct in:

Ascension

Introduced into:

Belize, Central American Pac, Chagos Archipelago, Christmas I., Cocos (Keeling) Is., Cook Is., Costa Rica, Ecuador, El Salvador, Galápagos, Gilbert Is., Guatemala, Honduras, Jamaica, Leeward Is., Marianas, Marshall Is., Nauru, Netherlands Antilles, Nicaragua, Panamá, Puerto Rico, Seychelles, Suriname, Trinidad-Tobago, Windward Is.

Oldenlandia L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2003 Davis, A.P. [1140], Madagascar 72315.000
Davis, A.P. [2730], Madagascar 72932.000
Baron, R. [307], Madagascar K000046527 Unknown type material
Maurin, O. [147], Madagascar 76237.000
Conceição, A.S. [434], Brazil K001136476

First published in Sp. Pl.: 119 (1753)

Accepted by

  • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

Not accepted by

  • Wu, Z., Raven, P.H. & Hong, D. (eds.) (2011). Flora of China 19: 1-884. Missouri Botanical Garden Press, St. Louis. [Cited as Hedyotis.]
  • Smith, A.C. (1988). Flora Vitiensis Nova. A new flora for Fiji (Spermatophytes only) 4: 1-377. Pacific Tropical Botanical Garden, Lawai. [Cited as Hedyotis.]

Literature

Flora of West Tropical Africa

  • Bremek. in Verb. K. Nederl. Akad. Wetensch., Afd. Natuurk., sect. 2, 48: 20 (1952).
  • —F.T.A. 3: 51, partly

Flora Zambesiaca

  • Bremek. in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 183 (1952).
  • Gen. Pl. ed. 5: 55 (1754).
  • Sp. Pl.: 119 (1753)

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by M. Thulin [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • Bremek. in Verh. K. Nederl. Akad. Wet., Afd. Natuurk., ser. 2, 48(2): 183 (1952)
  • L., Gen. Pl., ed. 5: 55 (1754)
  • Sp Pl.: 119 (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

Herbarium Catalogue Specimens
'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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

Plants and People Africa
Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
© Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/