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

[FZ]

Urticaceae, I. Friis. Flora Zambesiaca 9:6. 1991

Morphology General Habit
Erect annual herbs to c. 30(80) cm. tall, sometimes branched from the base, sometimes stems or branches rooting at the lower nodes, puberulous.
Morphology Leaves
Leaves alternate, lower 1–2 pairs opposite, 2–4(7.5) x 1–2.5(4) cm., ovate; apex long acuminate; base cuneate to rounded; margin crenate; lamina sparsely pilose above, and on the nerves beneath, hairs appressed.
Morphology Leaves Petiole
Petiole 0.8–4.7 cm. long, puberulous.
Morphology Leaves Stipules
Stipules up to 2–5 mm. long, lanceolate.
Morphology Reproductive morphology Inflorescences
Inflorescences usually bisexual, consisting of a dense, ebracteate cluster of male flowers in the axil of one stipule and a bracteate cluster of female flowers in the axil of the other stipule; sometimes also a few flowers on a short axillary branch with much reduced leaves, or only female flowers in a cluster in the leaf axil.
Morphology Reproductive morphology Inflorescences Bracts
Bracts narrowly lanceolate, often crowned by bristles.
sex Male
Male perianth c. 1 mm. long, with 2–3 apical bristles.
Morphology Reproductive morphology Flowers
Female flower c. 2 mm. long, stigma c. 1 mm. long, sessile, filiform. Male perianth c. 1 mm. long, with 2–3 apical bristles.
sex Female
Female flower c. 2 mm. long, stigma c. 1 mm. long, sessile, filiform.
Morphology Reproductive morphology Fruits
Achene ovoid, brownish, c. 2 mm. long.

[FTEA]

Urticaceae, I. Friis University of Copenhagen, Denmark. Flora of Tropical East Africa. 1989

Morphology General Habit
Slender annual herb.
Morphology Stem
Stems up to 80 cm. high, branched from the base, lower part of branches sometimes rooting at nodes, moderately to sparsely pubescent with patent stiff or slender curly hairs, sometimes also with a few hooked hairs.
Morphology Leaves
Lower 1–2 pairs of leaves opposite, upper leaves alternate; stipules lanceolate, long-acuminate, glabrous or ciliate, 2–5 mm. long, 0.3–0.8 mm. wide; petiole 25–47 mm. long, pubescent or with scattered stiff hairs; lamina lanceolate, 2–7.5 cm. long, 1.5–4 cm. wide, base cuneate, margin clearly crenate with 5–12 teeth on each side; lateral nerves 4–5 pairs, basal pair reaching the upper 1/3 of lamina before arching towards the midnerve and uniting with the upper lateral nerves; upper surface with sparse appressed stiff hairs, lower with hairs numerous on veins and a few scattered hairs.
Morphology Reproductive morphology Inflorescences
Inflorescences up to 5 mm. in diameter, bracts ciliate, linear to narrowly lanceolate.
Morphology Reproductive morphology Flowers
Male and ♀ flowers as described under the genus.
Morphology Reproductive morphology Fruits
Achenes covered with hooked hairs and glands, ± 1.75 mm. long.
Figures
Fig. 17/A–G.
Habitat
Upland rain-forest and dry montane forest, among rocks or in shaded grassland along streams; 1400–2000 m.
Distribution
K1 K3 K4 K5 T2

Native to:

Cape Provinces, Eritrea, Ethiopia, Free State, Kenya, KwaZulu-Natal, Lesotho, Namibia, Northern Provinces, Swaziland, Tanzania, Zambia, Zaïre

Introduced into:

Fiji

Didymodoxa caffra (Thunb.) Friis & Wilmot-Dear appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1986 Drege [s.n.] K000243025 isolectotype
Jan 1, 1986 KwaZulu-Natal K000243026
K000243019
Friis, I. [3532], Ethiopia K000062232
Volkens, G. [1700], Tanzania Didymodoxa acuminata K000243014 Unknown type material

First published in Bol. Soc. Brot., sér. 2.A, 58: 210 (1985)

Accepted by

  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Friis, I. (1989). Flora of Tropical East Africa, Urticaceae: 1-64.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.
  • Hedberg, I. & Edwards, S. (eds.) (1989 publ. 1990). Flora of Ethiopia and Eritrea 3: 1-659. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Launert, E. & Cope, G.V. (eds.) (1991). Flora Zambesiaca 9(6): 1-135. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
  • Friis, I. (1989). Flora of Tropical East Africa, Urticaceae: 1-64.
  • Germishuizen, G. & Meyer, N.L. (eds.) (2003). Plants of Southern Africa an annotated checklist Strelitzia 14: 1-1231. National Botanical Institute, Pretoria.
  • Smith, A.C. (1981). Flora Vitiensis Nova. A new flora for Fiji (Spermatophytes only) 2: 1-810. Pacific Tropical Botanical Garden, Lawai.

Flora of Tropical East Africa

  • Friis & Wilmot-Dear in Bol. Soc. Brot., sér. 2, 58:210 (1986).

Flora Zambesiaca
Flora Zambesiaca
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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