Skip to main content
This species is accepted, and its native range is Ethiopia to S. Africa.
Euphorbia crotonoides Boiss.

[FTEA]

Euphorbiaceae, A. R.-Smith. Flora of Tropical East Africa. 1987

Morphology General Habit
Annual much-branched somewhat fleshy herb to 50(–100) cm. high, stem often woody below; branches and upper part of the stem longitudinally ridged to distinctly winged, the whole plant covered in long spreading white hairs.
Morphology Leaves
Leaves reflexed, linear-lanceolate to ovate, 3–14 × 0.5–6 cm., base tapering into a 2-winged petiole, apex acute, margin subentire to markedly serrate, with gland-tipped often red-tinged teeth, midrib winged on the lower surface; petiole to 5 cm. long; glandular stipules dark red.
Morphology Reproductive morphology Inflorescences
Cymes axillary and in terminal 3-branched umbels forking many times, with primary rays to 12 cm. long; bracts narrower than the leaves, with petioles to 5 mm. long.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia subsessile, 2.5 × 3.5 mm., with cup-shaped involucres; glands 4, transversely elliptic, 0.8 × 1.5 mm., yellow, turning brown, then red; lobes quadrangular, 1.75 mm. wide, margin ciliate.
Morphology Reproductive morphology Flowers
Male flowers:bracteoles deeply laciniate, apices ciliate; staments 3 mm. long. Female flower:ovary densely pilose; styles 2–2.5 mm. long, puberulous, joined to almost halfway, erect with apices spreading, thickened.
sex Male
Male flowers:bracteoles deeply laciniate, apices ciliate; staments 3 mm. long.
sex Female
Female flower:ovary densely pilose; styles 2–2.5 mm. long, puberulous, joined to almost halfway, erect with apices spreading, thickened.
Morphology Reproductive morphology Fruits
Capsule exserted on a slightly curved pilose pedicel to 3 mm. long, subglobose, 6.5–7 mm. in diameter, with truncate base and shallow longitudinal grooves along the sutures, pilose with long spreading hairs.
Morphology Reproductive morphology Seeds
Seeds ovoid or conical, 4-angled, ± 4.5 × 2.5 mm., apex rounded or acute, brown to grey or reddish black, surface obscurely or distinctly tuberculate in irregular horizontal lines.

Native to:

Angola, Botswana, Ethiopia, Kenya, Malawi, Mozambique, Namibia, Northern Provinces, Sudan, Tanzania, Zambia, Zimbabwe

Euphorbia crotonoides Boiss. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Gillett, J.B. [13770], Kenya 2035.000
Milne-Redhead, E. [11303], Tanzania 25400.000
Wild, H. [4773], Zimbabwe 3662.000

First published in A.P.de Candolle, Prodr. 15(2): 98 (1862)

Accepted by

  • Bruyns, P.V. (2012). Nomenclature and typification of southern African species of Euphorbia Bothalia 42: 217-245.
  • Calane da Silva, M., Izdine, S. & Amuse, A.B. (2004). A Preliminary Checklist of the Vascular Plants of Mozambique: 1-184. SABONET, Pretoria.
  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Govaerts, R., Frodin, D.G. & Radcliffe-Smith, A. (2000). World Checklist and Bibliography of Euphorbiaceae (and Pandaceae) 1-4: 1-1622. The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Calane da Silva, M., Izdine, S. & Amuse, A.B. (2004). A Preliminary Checklist of the Vascular Plants of Mozambique: 1-184. SABONET, Pretoria.

Flora of Tropical East Africa

  • A.D.Q. Agnew, Upland Kenya Wild Flowers p. 222 (1974).
  • A.J. Jex-Blake, Some Wild Flowers of Kenya p. 37 (1948).
  • Boiss. in DC., Prodr. 15(2): 98 (1862).
  • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Brux.) p. 444 (1958).
  • F. W. Andr., The Flowering Plants of the Anglo-Egyptian Sudan 2: 73 (1952).
  • N.E. Br. in Flora of Tropical Africa 6(1): 518 (1911).
  • S. Carter in Kew Bulletin 39: 650 (1984).

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

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/