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

[FZ]

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

Morphology General Habit
Glabrous perennial, very occasionally rhizomatous, with an erect succulent tuberculate stem to 30 cm high, rarely more, to 10 cm thick, rarely branching; tubercles in 5–8 spiralled series, rhomboid to about 15 × 12 mm, scarcely prominent, bearing the leaves at their apices.
Morphology Leaves
Leaves subsessile; lamina to 12(21) × 1.3(3) cm, linear lanceolate, apiculate at the apex, tapering to the base, entire.
Morphology Reproductive morphology Inflorescences
Cymes in axillary and terminal 1–3-branched umbels produced on slender leafy branches to 20 cm long arising from the tubercle axils with primary rays to 8 cm long, each forking many times.
Morphology Reproductive morphology Inflorescences Bracts
Bracts sessile, c. 3 × 2–3 cm, deltoid, apex acuminate, base subcordate, the bracts below the umbel larger and more leaf-like.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia on peduncles 2–5 mm long, 5 × 12 mm with cup-shaped involucres; glands 4, or 5 on the central cyathium of the umbel, c. 1.5 × 4 mm, transversely elliptic, outer margin with 3–6 finger-like processes 1–2 mm long which branch and rebranch at the tips, terminating in minute knobs, purplish-red, rarely green; lobes 2.5 × 2.5 mm, subquadrate, margin deeply toothed, minutely puberulous.
sex Male
Male flowers: bracteoles fan-shaped, laciniate, feathery; stamens 8 mm long.
Morphology Reproductive morphology Flowers
Female flower: ovary pedicellate; styles c. 4 mm long, joined to c. halfway with spreading thickened minutely bifid apices. Male flowers: bracteoles fan-shaped, laciniate, feathery; stamens 8 mm long.
sex Female
Female flower: ovary pedicellate; styles c. 4 mm long, joined to c. halfway with spreading thickened minutely bifid apices.
Morphology Reproductive morphology Fruits
Capsule on an erect pedicel c. 1 cm long, 8 × 11 mm, subglobose, 3-lobed, with 6 longitudinal ridges when dry.
Morphology Reproductive morphology Seeds
Seeds 4.2 × 3.8 mm, subglobose, apex very obtuse, surface obscurely wrinkled, yellowish-grey.

Native to:

Angola, Botswana, Cape Provinces, Namibia, Northern Provinces, Zimbabwe

Euphorbia monteiroi Hook.f. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Pickering [s.n.], Namibia 36659.000
s.coll. [s.n.], Angola K000253084 Unknown type material
Baines [s.n.], South Africa K000388028
Baines, T. [s.n.], Botswana K000354538

First published in Bot. Mag. 91: t. 5534 (1865)

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.

Flora Zambesiaca
Flora Zambesiaca
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