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This genus is accepted, and its native range is Tropical Africa to Pacific.

[FZ]

Urticaceae, I. Friis. Flora Zambesiaca 9:6. 1991

Morphology General Habit
Erect annual or perennial, monoecious herbs.
Morphology Stem
Stems prostrate and ascending.
Morphology General Cystoliths
Cystoliths linear.
Morphology Leaves
Leaves distichous, apparently alternate, sessile or very shortly petiolate, asymmetrical; stipules fused, intrapetiolar, (the presence of 2 pairs of stipules indicates that the genus has opposite leaves but one leaf of each pair is rudimentary or totally reduced).
Morphology Reproductive morphology Inflorescences
Inflorescences unisexual, axillary, sessile (in the Flora Zambesiaca area), consisting of very densely clustered flowers and surrounded by almost free bracts in the male inflorescences or by somewhat fused bracts in the female inflorescences.
Morphology Reproductive morphology Flowers
Male flowers 4–5-merous, tepals generally with a horn-like dorsal appendage; rudimentary ovary absent or indistinct. Female flowers with 3–5 very reduced tepals and 3 scale-like staminodes, sometimes sterile; ovary ovoid with a penicillate stigma.
Morphology Reproductive morphology Fruits
Achene ovoid, small, ejected by the reflexing of the staminodes.

[FTEA]

Urticaceae, I. Friis University of Copenhagen, Denmark. Flora of Tropical East Africa. 1989

Morphology Leaves
Leaves alternate, distichous, sessile or very shortly petiolate, asymmetrical; stipules completely or partly fused, intrapetiolar (however, the presence of vestiges of 2 pairs of stipules indicates that the genus has basically opposite leaves, but one leaf of each pair is rudimentary or totally reduced), stipules of reduced leaf different in size and sometimes also in form from those of extant leaf Cystoliths linear
Morphology Reproductive morphology Inflorescences
Inflorescences unisexual, axillary, sessile (in Flora area), consisting of very densely clustered flowers and surrounded by almost free bracts in the ♂ inflorescences or by somewhat fused bracts in the ♀ inflorescences
sex Male
Male flowers 4–5-merous, tepals generally with a horn-like dorsal appendage; rudimentary ovary poorly developed or absent
Morphology Reproductive morphology Flowers
Female flowers with 3–5 very reduced tepals and 3 scale-like staminodes, sometimes sterile; ovary ovoid, with penicillate stigma Male flowers 4–5-merous, tepals generally with a horn-like dorsal appendage; rudimentary ovary poorly developed or absent
sex Female
Female flowers with 3–5 very reduced tepals and 3 scale-like staminodes, sometimes sterile; ovary ovoid, with penicillate stigma
Morphology Reproductive morphology Fruits
Achene ovate, small, ejected by the reflexed staminodes.
Morphology General Habit
Erect annual and perennial monoecious herbs
Morphology Stem
Stems prostrate and ascending, with the regularly arranged leaves forming flattened aerial shoots

Native to:

Andaman Is., Angola, Assam, Bangladesh, Bismarck Archipelago, Borneo, Burundi, Cambodia, Cameroon, Caroline Is., China North-Central, China South-Central, China Southeast, Comoros, Congo, East Himalaya, Ethiopia, Fiji, Gabon, Ghana, Guinea, Gulf of Guinea Is., Hainan, India, Ivory Coast, Japan, Jawa, Kenya, Korea, Laos, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Maluku, Marianas, Mauritius, Mozambique, Myanmar, Nansei-shoto, Nepal, New Guinea, New South Wales, New Zealand North, Nicobar Is., Nigeria, Norfolk Is., Philippines, Queensland, Rwanda, Réunion, Samoa, Society Is., Solomon Is., Sri Lanka, Sudan, Sulawesi, Sumatera, Taiwan, Tanzania, Thailand, Tibet, Togo, Uganda, Vanuatu, Vietnam, Wallis-Futuna Is., West Himalaya, Zambia, Zaïre, Zimbabwe

Elatostema J.R.Forst. & G.Forst. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Oct 1, 1999 Johns, R.J. [9079], New Guinea 62555.000
Beentje, H.J. [4736], Madagascar 60558.000
Johns, R.J. [10526], New Guinea 64376.000
Conn, B.J. et al. [5104], Papua New Guinea K000612484
Baker, W.J. [1199], Papua New Guinea K000612490
Baker, W.J. [1293], Papua New Guinea K000612491
Sands, M.J.S. [895], Papua New Guinea K000612494
Sands, M.J.S. [741], Papua New Guinea K000612496
Conn, B.J. et al. [5151], Papua New Guinea K000612485
Sands, M.J.S. [1058], Papua New Guinea K000612499
Sands, M.J.S. [892], Papua New Guinea K000612495
Pius Piskaut [20235], Papua New Guinea K000612493
Sands, M.J.S. [1240], Papua New Guinea K000612498
Sands, M.J.S. [1241], Papua New Guinea K000612497

First published in Char. Gen. Pl.: 105 (1776)

Accepted by

  • Govaerts, R. (2001). World Checklist of Seed Plants Database in ACCESS E-F: 1-50919.
  • Tseng, Y.H. & Hu, J.M. (2015). Taxonomic revision of Elatostema J.R.Forst. & G.Forst. (Urticaceae) in Taiwan Taiwania 60: 23-32.

Literature

Flora of West Tropical Africa

  • —F.T.A. 6, 2: 277.

Flora Zambesiaca

  • Char. Gen. Pl.: 105 (1776) nom. conserv.

Flora of Tropical East Africa

  • Char. Gen. Pl.: 105 (1776)
  • Engl. in E. & P. Pf. 3(1): 109 (1888)
  • G.F.P. 2: 184 (1967), nom. conserv.
  • G.P. 3:386 (1880)

Flora Zambesiaca
Flora Zambesiaca
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

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