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This species is accepted, and its native range is Ethiopia to S. Tropical Africa.
A specimen from Kew's Herbarium

[FZ]

Euphorbiaceae, S. Carter & L.C. Leach. Flora Zambesiaca 9:5. 2001

Morphology General Habit
Perennial herb with a woody twisted root c. 1 cm thick and up to 25 cm long or more, producing several woody underground stems to 3 cm long branching profusely at ground level, whole plant glabrous or densely pilose; branches densely rebranching, leafy and prostrate up to 15(35) cm long or more, floriferous and erect to c. 5 cm high, often tinged red.
Morphology Leaves
Leaves with a petiole to 2 mm long; stipules c. 1 mm long, linear or deeply divided into 2–4 linear teeth; lamina to 35 × 9 mm, lanceolate to ovate, minutely apiculate at the apex, obliquely subcordate at the base, entire or occasionally minutely toothed at the very narrow cartilaginous margin, lower surface often tinged red.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia terminal and pseudoaxillary, solitary on peduncles 1–25 mm long, 2 × 2.5 mm with broadly cup-shaped involucres; glands 4 in bisexual cyathia, or sometimes 5 in cyathia which develop only male flowers, c. 1 mm wide, transversely elliptic, red with conspicuous white or pink appendages to 1.5 × 2 mm, entire or shallowly 2–3-lobed; involucral lobes 0.8 mm long, acutely triangular, margin ciliate.
sex Male
Male flowers many, especially in unisexual cyathia: bracteoles deeply laciniate, apices ciliate; stamens 2 mm long.
Morphology Reproductive morphology Flowers
Female flower: ovary pedicellate; styles 1 mm long, erect, bifid to halfway. Male flowers many, especially in unisexual cyathia: bracteoles deeply laciniate, apices ciliate; stamens 2 mm long.
sex Female
Female flower: ovary pedicellate; styles 1 mm long, erect, bifid to halfway.
Morphology Reproductive morphology Fruits
Capsule exserted on a reflexed pedicel 5.5 mm long, 3 × 3 mm, deeply 3-lobed.
Morphology Reproductive morphology Seeds
Seeds 1.75 × 1.25 mm, ovate-conical, deeply pitted, reddish-buff.

[FTEA]

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

Morphology General Habit
Perennial herb with a woody twisted root 1 cm. thick and to 25 cm. or more long, producing several woody underground stems to 3 cm. long, which branch profusely at ground-level; branches densely rebranching, leafy and prostrate to ± 10(–25) cm. long, or more floriferous and erect to ± 5 cm. high, often tinged red.
Morphology Leaves
Leaves lanceolate to ovate to 16 × 9 mm., base obliquely subcordate, apex minutely apiculate, the very narrowly cartilaginous margin entire or occasionally minutely toothed, under surface often tinged red; petiole to 2 mm. long; stipules linear or deeply divided into 2–4 linear teeth, ± 1 mm. long.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia solitary on peduncles 1–25 mm. long, terminal and pseudoaxillary, 2 × 2.5 mm., with broadly cup-shaped involucres; glands 4 in hermaphrodite cyathia, or sometimes 5 in cyathia which develop only ♂ flowers, transversely elliptic, ± 1 mm. wide, red with conspicuous white or pink, entire or obscurely 2–3-lobed appendages to 1.5 × 2 mm.; involucral lobes acutely triangular, 0.8 mm. long, margin ciliate.
Morphology Reproductive morphology Flowers
Male flowers many, especially in unisexual cyathia:bracteoles deeply laciniate, apices ciliate; stamens 2 mm. long. Female flower:ovary pedicellate; styles 1 mm. long, erect, bifid to halfway.
sex Male
Male flowers many, especially in unisexual cyathia:bracteoles deeply laciniate, apices ciliate; stamens 2 mm. long.
sex Female
Female flower:ovary pedicellate; styles 1 mm. long, erect, bifid to halfway.
Morphology Reproductive morphology Fruits
Capsule exserted on a reflexed pedicel 5.5 mm. long, deeply 3-lobed, 3 × 3 mm.
Morphology Reproductive morphology Seeds
Seeds ovate-conical, 1.75 × 1.25 mm., reddish buff and deeply pitted.
Figures
Fig. 78/5, p. 422.

Native to:

Angola, Burundi, Central African Repu, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Somalia, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Euphorbia zambesiana Benth. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Richards, H.M. [12829], Zambia 15805.000
Richards, H.M. [13100], Tanzania 15806.000
Brenan, J.P.M. [7957], Zambia 2617.000
Gillett, J.B. [14737], Ethiopia 2618.000
Meller, C.J. [s.n.], Malawi K000253055
Meller, C.J. [s.n.], Malawi K000253059
Meller, C.J. [s.n.], Malawi K000253058
Kirk, J. [s.n.], Malawi K000253057
Buchanan, J. [10], Malawi K000253056

First published in Hooker's Icon. Pl. 14: t. 1305 (1880)

Accepted by

  • Bruyns, P.V. (2012). Nomenclature and typification of southern African species of Euphorbia Bothalia 42: 217-245.
  • 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.
  • Yang, Y., Riina, R., Morawetz, J.J., Haevermans, T., Aubriot, X. & Berry, P.E. (2012). Molecular phylogenetics and classification of Euphorbia subgenus Chamaesyce (Euphorbiaceae) Taxon 61: 764-789.

Literature

Flora of Tropical East Africa

  • Benth. in Hook., Ic. Pl. 14, t. 1305 (1880).
  • Cribb, Mount. Fl. S. Tanz.: 78 (1982).
  • N.E.Br. in Flora of Tropical Africa 6(1): 500 (1911).

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
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