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

[FTEA]

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

Morphology General Habit
A prostrate puberulous or pubescent annual herb with branches up to 0.5 m. long.
Morphology Leaves
Petioles 1–7 mm. long; leaf-blade ovate-lanceolate to lanceolate, (1–)3–6.7 cm. long, (0.4–)1–1.8 cm. wide, subacute or obtuse, cuneate or rounded, closely and rather indistinctly serrate or crenate-serrate, firmly membranous, 3(–5)-nerved at the base, lateral nerves 6–8 pairs, sparingly pubescent above and beneath at first, later becoming glabrous except along the midrib and main nerves, green above, paler beneath.
Morphology Leaves Stipules
Stipules subulate, 1–2 mm. long, sparingly pubescent.
Morphology Reproductive morphology Inflorescences
Male racemes solitary, axillary, 4–5 cm. long, long-pedunculate, sometimes replaced by allomorphic ♀ flowers which give rise to a clavate, 1-seeded fruit; bracts 0.5 mm. long. Female inflorescences spicate, solitary, terminal or subterminal, cylindric, 2–4(–6) cm. long, ± 1 cm. wide, subsessile or shortly pedunculate; bracts multifid, the segments linear, (3–)4–5 mm. long, pubescent, eglandular, slightly reddish tinged, 1-flowered.
Morphology Reproductive morphology Flowers
Male flowers shortly pedicellate; buds subglobose, 4-gonous, to 0.3 mm. diameter, subglabrous, reddish tinged. Female flowers sessile; sepals 3, triangular, 1 mm. long, acute, ciliate; ovary deeply trilobate, 0.5 mm. diameter, sparingly pubescent at the apex, otherwise ± glabrous; styles free, slender, filiform, 7–8 mm. long, simple, glabrous, red.
sex Male
Male flowers shortly pedicellate; buds subglobose, 4-gonous, to 0.3 mm. diameter, subglabrous, reddish tinged. Male racemes solitary, axillary, 4–5 cm. long, long-pedunculate, sometimes replaced by allomorphic ♀ flowers which give rise to a clavate, 1-seeded fruit; bracts 0.5 mm. long.
sex Female
Female flowers sessile; sepals 3, triangular, 1 mm. long, acute, ciliate; ovary deeply trilobate, 0.5 mm. diameter, sparingly pubescent at the apex, otherwise ± glabrous; styles free, slender, filiform, 7–8 mm. long, simple, glabrous, red. Female inflorescences spicate, solitary, terminal or subterminal, cylindric, 2–4(–6) cm. long, ± 1 cm. wide, subsessile or shortly pedunculate; bracts multifid, the segments linear, (3–)4–5 mm. long, pubescent, eglandular, slightly reddish tinged, 1-flowered.
Morphology Reproductive morphology Fruits
Fruits deeply trilobate, 1.5 mm. long, 2.5 mm. diameter, sparingly pubescent at the apex, otherwise glabrous.
Morphology Reproductive morphology Seeds
Seeds ovoid-subglobose, 1.3 mm. long, 1 mm. wide, smooth, brownish purple, with a small white velar caruncle perpendicular to the raphe.
Habitat
Deciduous woodland and thicket, often in open or rocky places; 240–900 m.
Distribution
T8

[FZ]

Euphorbiaceae, A. Radcliffe-Smith. Flora Zambesiaca 9:4. 1996

Morphology General Habit
An annual herb with an erect lead shoot to c. 15 cm high and numerous prostrate, decumbent or ascending lateral shoots up to 30 cm long.
Morphology Stem
Stems puberulous or pubescent.
Morphology Leaves Petiole
Petioles 0.3–1(2) cm long.
Morphology Leaves Leaf lamina
Leaf blades 1–5 × 0.4–2.5 cm, ovate-lanceolate or ovate-trullate, subacute or obtuse at the apex, finely crenulate to subentire on the margin, cuneate or rounded at the base, membranous, sparingly puberulous or pubescent on both surfaces, especially on the midrib and main nerves, or else ± glabrous, 3–5-nerved from the base; lateral nerves in 4–6 pairs.
Morphology Leaves Stipules
Stipules c. 1 mm long, subulate.
Morphology Reproductive morphology Inflorescences
Male spikes axillary, up to 13 cm long, with a peduncle up to 9 cm long; bracts minute. Female spikes terminal, or apparently lateral when a lateral shoot arises from beneath one, 1–6 × 0.5–1 cm, cylindric or sometimes ovoid, subsessile or shortly pedunculate; bracts 7 × 8–9 mm, ± reniform, pubescent, eglandular, often reddish-tinged, 1-flowered, 16–20-toothed, the teeth c. 3 mm long, linear. Allomorphic female flowers solitary, axillary.
sex Male
Male spikes axillary, up to 13 cm long, with a peduncle up to 9 cm long; bracts minute. Male flowers sessile; buds subglobose, minute, sparingly pubescent to subglabrous, reddish; anthers creamy-white.
Morphology Reproductive morphology Flowers
Female flowers sessile; sepals 3, 1 mm long, triangular, acute, ciliate; ovary 0.5 mm in diameter, deeply 3-lobed, sparingly pubescent at the apex, otherwise ± glabrous; styles free, 7–8 mm long, slender, filiform, simple, glabrous, dark red. Allomorphic female flowers long-pedicellate, the pedicels up to 3 cm long, capillary. Male flowers sessile; buds subglobose, minute, sparingly pubescent to subglabrous, reddish; anthers creamy-white.
sex Female
Female flowers sessile; sepals 3, 1 mm long, triangular, acute, ciliate; ovary 0.5 mm in diameter, deeply 3-lobed, sparingly pubescent at the apex, otherwise ± glabrous; styles free, 7–8 mm long, slender, filiform, simple, glabrous, dark red. Allomorphic female flowers long-pedicellate, the pedicels up to 3 cm long, capillary. Female spikes terminal, or apparently lateral when a lateral shoot arises from beneath one, 1–6 × 0.5–1 cm, cylindric or sometimes ovoid, subsessile or shortly pedunculate; bracts 7 × 8–9 mm, ± reniform, pubescent, eglandular, often reddish-tinged, 1-flowered, 16–20-toothed, the teeth c. 3 mm long, linear. Allomorphic female flowers solitary, axillary.
Morphology Reproductive morphology Fruits
Fruits of the allomorphic flowers 2 × 1.5 mm, obovoid, tuberculate, minutely puberulous. Fruits 1.5 × 2.5 mm, deeply 3-lobed, sparingly pubescent at the apex, otherwise glabrous.
Morphology Reproductive morphology Seeds
Seeds 1.3 × 1 mm, ovoid-subglobose, smooth, pinkish-brown, with a small white velar caruncle.

Native to:

Malawi, Mozambique, Tanzania

Acalypha nyasica Hutch. appears in other Kew resources:

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 6(1): 894 (1912)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
  • 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

  • Hutch. in Flora of Tropical Africa 6(1): 894 (1912).
  • Pax in A. Engler, Das Pflanzenreich IV. 147(16): 70 (1924).

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

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