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This species is accepted, and its native range is SW. Uganda to N. Malawi.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Perennial shrubby herb to 3 m. high, woody at the base; branches in whorls of 5, glabrous or very sparsely pilose, often tinged red.
Morphology Leaves
Leaves subsessile, lanceolate, to 11 × 3 cm., base tapering into a very short flattened petiole, apex acute to shortly apiculate, margin entire, petiole and lower surface of the leaf pilose with long, soft hairs, especially the midrib and sometimes the upper surface of young leaves.
Morphology Reproductive morphology Inflorescences
Cymes in terminal 5-branched umbels, with primary rays to 7 cm. long, forking usually twice; bracts sessile, deltoid, to 2 × 2 cm., apex obtuse to rounded and minutely apiculate, base and lower margins sparsely pilose.
Morphology Reproductive morphology Inflorescences Cyathia
Central cyathium of the umbel on a peduncle 1.5 mm. long, the rest sessile, 3 × 3.8 mm., with funnel-shaped involucres, glabrous; glands 4–5, transversely oblong, and ± 2-lipped, ± 1.5 mm. broad, yellow-green; involucral lobes subquadrate, 1 mm. long, apex shallowly bilobed, ciliate on the inner surface.
Morphology Reproductive morphology Flowers
Male flowers:bracteoles spathulate, deeply toothed, densely ciliate; stamens 4 mm. long. Female flower:ovary tuberculate, glabrous; styles 1.8 mm. long joined at the base, spreading, bifid for 1/3, with thickened apices.
sex Male
Male flowers:bracteoles spathulate, deeply toothed, densely ciliate; stamens 4 mm. long.
sex Female
Female flower:ovary tuberculate, glabrous; styles 1.8 mm. long joined at the base, spreading, bifid for 1/3, with thickened apices.
Morphology Reproductive morphology Fruits
Capsule exserted on a pedicel to 6 mm. long, 3-lobed, 4 × 5 mm., almost smooth with faint indications of a few tubercles, capsule wall very thick.
Morphology Reproductive morphology Seeds
Seeds ovoid, 3.2 × 2.5 mm., grey, obscurely wrinkled; caruncle whitish, 0.5 mm. across.
Habitat
In forest clearings, often in damp situations, and in the bamboo zone; 1980–3350 m.
Distribution
K3 K4 K6 T7 U3 not known elsewhere

[FZ]

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

Morphology General Habit
Shrubby perennial herb to 1(3) m high, woody at the base; branches in whorls of c. 5, glabrous or very sparsely pilose.
Morphology Leaves
Leaves subsessile with a very short flattened petiole; lamina to 11 × 3 cm, lanceolate, acute to shortly apiculate at the apex, cuneate at the base, entire at the margin, petiole and leaf lower surface pilose with long, soft hairs, especially the midrib and sometimes the upper surface of young leaves.
Morphology Reproductive morphology Inflorescences
Cymes in terminal 5-branched umbels, with primary rays to 7 cm long, each forking usually twice.
Morphology Reproductive morphology Inflorescences Bracts
Bracts sessile, to 2 × 2 cm, deltoid, apex obtuse to rounded and minutely apiculate, base and lower margins sparsely pilose.
Morphology Reproductive morphology Inflorescences Cyathia
Central cyathium of the umbel on a peduncle 1.5 mm long, the rest sessile, 3 × 3.8 mm, with funnel-shaped involucres, glabrous; glands 4–5, c. 1.5 mm broad, transversely oblong and 2-lipped, yellow-green; lobes 1 mm long, subquadrate, apex with 2 shallow teeth, ciliate on the inner surface.
sex Male
Male flowers: bracteoles spathulate, deeply toothed, densely ciliate; stamens 4 mm long.
Morphology Reproductive morphology Flowers
Female flower: ovary glabrous, verrucose; styles 1.8 mm long, joined at the base, spreading, with deeply bifid thickened apices. Male flowers: bracteoles spathulate, deeply toothed, densely ciliate; stamens 4 mm long.
sex Female
Female flower: ovary glabrous, verrucose; styles 1.8 mm long, joined at the base, spreading, with deeply bifid thickened apices.
Morphology Reproductive morphology Fruits
Capsule exserted on a pedicel to 6 mm long, 4 × 5 mm, 3-lobed, almost smooth but slightly verrucose when mature, capsule wall very thick.
Morphology Reproductive morphology Seeds
Seeds 3.2 × 2.5 mm, ovoid, obscurely wrinkled, grey; caruncle 0.5 mm across, whitish.

Native to:

Kenya, Malawi, Tanzania, Uganda

Euphorbia ugandensis Pax & K.Hoffm. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Tweedie, E.M. [2521], Kenya 25636.000
Scheffler, G. [[4]68], Uganda K000252965
Bidgood, S.C. [324], Tanzania K000452948
Lovett, J. [1851], Tanzania K000452943
Mwasumbi, L.B. [13533], Tanzania K000452947
Gillett, J.B. [17592], Tanzania K000452944
Gereau, R.E. [4708], Tanzania K000452946
Gereau, R.E. [4640], Tanzania K000452942
Gereau, R.E. [3780], Tanzania K000452950
Hooper, S.S. [1737], Tanzania K000452949
Grabner, J. [371], Tanzania K000452945

First published in Bot. Jahrb. Syst. 45: 240 (1910)

Accepted by

  • 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

Flora of Tropical East Africa

  • A.D.Q. Agnew, Upland Kenya Wild Flowers p. 223 (1974).
  • Dale & Greenway, Kenya Trees and Shrubs p. 202 (1961).
  • N.E. Br. in Flora of Tropical Africa 6(1): 531 (1911).
  • Pax in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 45: 240 (1910).

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