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This species is accepted, and its native range is E. Central & E. Tropical Africa.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Prostrate or suberect annual herb, with branches to 25 cm. long, longitudinally ridged, the whole plant glabrous or usually at least the lower branches, leaves and capsules sparsely covered with fairly short spreading hairs.
Morphology Leaves
Leaves ovate, to 10 × 7 mm., base rounded to subcordate and markedly oblique, apex rounded, margin entire or very obscurely toothed near the apex, hairs (when present) noticeable around the margin; petiole to 1 mm. long; stipules linear to 1 mm. long, occasionally deeply divided into 2–3 teeth.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia solitary on peduncles to 1 mm. long, terminal and pseudoaxillary on short leafy shoots, scarcely 1 × 1 mm., with cup-shaped involucres; glands 4, minute, transversely elliptic, green to purplish, with small entire or shallowly lobed white appendages; involucral lobes minute, triangular, ciliate.
Morphology Reproductive morphology Flowers
Male flowers:bracteoles linear, deeply divided; stamens 0.8 mm. long. Female flower:ovary pedicellate; styles 0.4 mm. long, spreading, bifid almost to the base.
sex Male
Male flowers:bracteoles linear, deeply divided; stamens 0.8 mm. long.
sex Female
Female flower:ovary pedicellate; styles 0.4 mm. long, spreading, bifid almost to the base.
Morphology Reproductive morphology Fruits
Capsule exserted on a reflexed pedicel 2.5 mm. long, acutely 3-lobed, 1.5 × 1.75 mm., with the ridges often purple tinged.
Morphology Reproductive morphology Seeds
Seeds ovoid, 1 × 0.6 mm., reddish brown, perfectly smooth.
Habitat
Seasonally wet open grassland on black fissuring clay; 800–1750 m.
Distribution
K4 K5 T1 T5 U1

Native to:

Burundi, Kenya, Tanzania, Uganda

Euphorbia lissosperma S.Carter appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Tanner, R.E.S. [550], Tanzania K000252958 holotype
Bidgood, S. [6263], Tanzania K000468162

First published in Kew Bull. 35: 414 (1980)

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.
  • 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

  • S. Carter in Kew Bulletin 35: 414, fig. 1/E–H (1980).

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