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This species is accepted, and its native range is Kenya.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
Glabrous succulent perennial herb, with a fleshy tuberous rootstock ± 5 cm. thick; stems numerous, clustered, rarely branched, erect to 10 cm. or decumbent to 15 cm. long, 1–1.5 cm. thick, tessellated with scarcely projecting elongated tubercles 5–25 mm. apart in 3 loosely spiralled series bearing the leaves at the apices.
Morphology Leaves
Leaves sessile, oblanceolate, to 8 × 2.5 cm., apex obtuse and apiculate, margin entire, crisped towards the apex; stipules evident as minute prickles 0.5 mm. long.
Morphology Reproductive morphology Inflorescences
Cymes on peduncles to 2.5 cm. long arising immediately above the leaf-scar, 1-forked; bract-cup ± equalling the involucre, ± 6 × 5 mm., shallowly notched between acute converging apices, dark green with white sharply prominent midribs.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia ± 5 × 4.5 mm., with cup-shaped involucres; glandular rim 2 mm. high, yellow; lobes transversely elliptic, ± 1 × 1.5 mm.
Morphology Reproductive morphology Flowers
Male flowers:bracteoles laciniate, puberulous; stamens 3.3 mm. long. Female flower:styles 1.5 mm. long, joined at the base, with thickened rugulose bifid apices.
sex Male
Male flowers:bracteoles laciniate, puberulous; stamens 3.3 mm. long.
sex Female
Female flower:styles 1.5 mm. long, joined at the base, with thickened rugulose bifid apices.
Morphology Reproductive morphology Fruits
Capsule exserted on a pedicel to 8 mm. long, acutely 3-lobed, with truncate base, 7 × 6 mm., and with a pair of narrow fleshy ridges along each angle.
Morphology Reproductive morphology Seeds
Seeds oblong, 4-angled, with truncate base, 4 × 2 mm., brown, shallowly tuberculate; caruncle stipitate, pointed, 1 mm. in diameter.
Habitat
Lightly wooded grassland among rocks in black cotton soil; 1175–1200 m.
Distribution
known only from Machakos District K4

Native to:

Kenya

Euphorbia yattana (P.R.O.Bally) Bruyns appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bally, P.R.O., Kenya Monadenium yattanum 15826.000 Unknown type material
Bally [12110], Kenya Monadenium yattanum 43958.000
Bally, P.R.O. [9750], Kenya Monadenium yattanum K000237833 isotype
Bally, P.R.O. [9750], Kenya Monadenium yattanum K000237834 isotype
Bally [B12110], Kenya Monadenium yattanum K000237835

First published in Taxon 55: 415 (2006)

Accepted by

  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

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