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This species is accepted, and its native range is Tanzania to Zimbabwe.

[FTEA]

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

Morphology General Habit
Glabrous perennial herb with a fleshy cylindrical rootstock 20–30 × 2–4 cm. and ± fleshy annual stems to 30 cm. high.
Morphology Leaves
Leaves ± fleshy, sessile, obovate to 12 × 4 cm., base cuneate, apex rounded to obtuse and minutely apiculate, margin entire; stipules filamentous ± 1 mm. long, deciduous.
Morphology Reproductive morphology Inflorescences
Cymes axillary and in terminal 3–4-branched umbels with primary rays to 10 cm. long, forking 2–4 times; bracts deltoid to 4.5 × 4 cm base subcordate, apex obtuse apiculate, those at the base of the umbel similar to the leaves.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia on peduncles to 1.5 mm. long, 5.5 × 10 mm., with cup-shaped involucres; glands 5, spreading, transversely elliptic ± 1.5 × 2–3.5 mm., outer margin obscurely crenulate; lobes rounded, 1.5 × 3 mm., margin entire and minutely ciliate.
Morphology Reproductive morphology Flowers
Male flowers many:bracteoles laciniate, with feathery apices; stamens 8 mm. long with anther-thecae minutely hispid. Female flower:styles 2 mm. long, joined at the base for 0.5 mm. then widely spreading, with shortly bifid apices.
sex Male
Male flowers many:bracteoles laciniate, with feathery apices; stamens 8 mm. long with anther-thecae minutely hispid.
sex Female
Female flower:styles 2 mm. long, joined at the base for 0.5 mm. then widely spreading, with shortly bifid apices.
Morphology Reproductive morphology Fruits
Capsule on a pedicel 2.5 mm. long, deeply 3-lobed, 1 × 1.2 cm.
Morphology Reproductive morphology Seeds
Seeds globose, 4.5 mm. in diameter, brownish grey, surface reticulately wrinkled.
Habitat
Amongst grass of seasonally wet areas in dry sandy soils and hard sunbaked black cotton pans; 600–1300 m.
Distribution
T1 T3 T4 T5 T6 T7

[FZ]

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

Morphology General Habit
Glabrous perennial herb with annual stems from a fleshy rootstock; rootstock, 20–30 × 2–4 cm, cylindrical; stems subfleshy to 35 cm high, rarely persistent and woody.
Morphology Leaves
Leaves sessile; stipules filamentous, c. 1 mm long, deciduous; lamina to c. 12 × 4 cm, lanceolate to obovate, rounded to obtuse at the apex and minutely apiculate, cuneate at the base, entire.
Morphology Reproductive morphology Inflorescences
Cymes axillary and in terminal 3-branched umbels with primary rays to 10 cm long, each forking 2–4 times.
Morphology Reproductive morphology Inflorescences Bracts
Bracts to 4.5 × 4 cm, deltoid, apex obtuse-apiculate, base subcordate, those at the base of the umbel similar to the leaves.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia on peduncles to 1.5 mm long, 5.5 × 10 mm, with cup-shaped involucres; glands 5, spreading, 1.5 × 2–3.5 mm, transversely elliptic with outer margin obscurely crenulate; lobes 1.5 × 3 mm, rounded, margin entire and minutely ciliate.
sex Male
Male flowers many: bracteoles laciniate with feathery apices; stamens 8 mm long, with anther cells minutely hispid.
Morphology Reproductive morphology Flowers
Female flower: styles 2 mm long, joined at the base for 0.5 mm, then widely spreading, with shortly bifid apices. Male flowers many: bracteoles laciniate with feathery apices; stamens 8 mm long, with anther cells minutely hispid.
sex Female
Female flower: styles 2 mm long, joined at the base for 0.5 mm, then widely spreading, with shortly bifid apices.
Morphology Reproductive morphology Fruits
Capsule 1 × 1.2 cm, deeply 3-lobed; pedicel 2.5 mm long.
Morphology Reproductive morphology Seeds
Seeds c. 4.5 mm in diameter, globose; surface reticulately wrinkled, brownish-grey.

Native to:

Malawi, Tanzania, Zambia, Zimbabwe

Euphorbia platycephala Pax appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bally, P.R.O. [11615], Tanzania 5534.000

First published in Bot. Jahrb. Syst. 19: 122 (1894)

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

  • N.E. Br. in Flora of Tropical Africa 6(1): 525 (1911).
  • Pax in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 19: 122 (1894).

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

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