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This species is accepted, and its native range is NE. Sudan to Tanzania.
A specimen from Kew's Herbarium

[FTEA]

Geraniaceae, J. O. Kokwaro (University College Nairobi). Flora of Tropical East Africa. 1971

Morphology General Habit
Annual herb, slightly viscid, decumbent or ascending, up to 7 dm. long.
Morphology Stem
Stems terete or longitudinally grooved; internodes weak and hollow. 3–17.5 cm. long, up to 3.5 mm. thick, mostly pilose below but becoming pubescent with glandular hairs on the younger parts towards the apex.
Morphology Leaves
Leaves mostly opposite, sometimes alternate towards the base; lamina 3–5-lobed, pentagonal in outline, divided to the midrib; lobes pinnatisect to palmate-compound, the central one in particular long-attenuate to the base and averaging only 1 mm. wide on this part, hispid on both surfaces; petiole (2–)4–19 cm. long, longitudinally grooved, pubescent and glandular; stipules ovate-lanceolate, 0.3–4 mm. long (much reduced on the older stem nodes), covered with glandular hairs especially on the abaxial surface.
Morphology Reproductive morphology Inflorescences
Inflorescence 2-flowered; peduncle 1–7.5 cm. long, pilose to glandular hairy; pedicels 4–15 mm. long; bracts often less than 2 mm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate, 4–8 mm. long, 2–3 mm. wide, mucronate, 3-nerved, hyaline along the edges, pilose or pubescent and glandular on the outer surface, glandular on the inner surface.
Morphology Reproductive morphology Flowers Corolla
Petals oblanceolate-spathulate, 5.5–9 mm. long, 0.5–2 mm. wide, pale lilac-mauve to bright pink, base of the claw white.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens:filaments narrowly lanceolate or acicular (truncate at the base), 4–6.5 mm. long; anthers somewhat glandular, 0.2–0.3 mm. long and wide, yellow.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary grooved and pubescent along the longitudinal ridges; stigmas 0.5–1 mm. long, light brown to pale cream.
Morphology Reproductive morphology Fruits
Mericarps with shallow reticulate ridges, 2.2–3 mm. long, frequently with raphe at the anterior end, glabrous or occasionally shortly pubescent; mature rostrum 10–19 mm. long, pubescent.
Morphology Reproductive morphology Seeds
Seeds 2–2.5 mm. long, 1–1.5 mm. wide; testa glabrous, pale brown.
Figures
Fig. 1.
Habitat
Upland rain-forest and riverine forest, along edges, beside paths and streams and in other moist shady places; 1300–3000 m.
Distribution
K3 K4 K5 T7

Native to:

Eritrea, Kenya, Sudan, Tanzania, Zaïre

Geranium elamellatum Kokwaro appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1990 Schweinfurth, G. [1491], Eritrea K000771849
Feb 10, 1972 Tweedie [4091], Uganda K000771851
Albrecht[en] [6687], Kenya K000417216 holotype
Kerfoot, O. [1652], Tanzania K000771850
Pierce, R. [1682], Kenya K000771852
Bally, P.R.O. [B7430], Kenya K000771854
Whyte, A. [s.n.], Kenya K000771856
Sir Arthur Hill [2526], Kenya K000771853
Jackson [2961], Sudan K000771848
[Chandler] [2249], Kenya K000771855

First published in Kew Bull. 23: 527 (1969)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Kokwaro, J.O. (1971). Flora of Tropical East Africa, Geraniaceae: 1-23.

Not accepted by

  • Govaerts, R. (2003). World Checklist of Seed Plants Database in ACCESS G: 1-40325. [Cited as Geranium purpureum.]

Literature

Kew Backbone Distributions

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Kokwaro in Kew Bulletin 23: 527, fig. 1 (1969).

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