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This species is accepted, and its native range is Ethiopia to N. Mozambique.
A specimen from Kew's Herbarium

[FZ]

Geraniaceae, T. Müller. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Perennial herb, climbing or trailing and rooting at the nodes; stems longitudinally furrowed, covered with sharp reflexed prickles, and with glandular hairs on the younger parts.
Morphology Leaves
Leaf-lamina 5-lobed, divided to about 3/4; lobes 1–10 mm. across at base, rhombic in outline, pinnatifid, stiffly pilose on both the upper and lower surfaces; petiole 1–8 cm. long, longitudinally furrowed, covered with sharp reflexed prickles and often also glandular hairs; stipules 3–8 mm. long, lacerated nearly to the base into lanceolate to linear segments, often glandular-hairy towards the margin, which is often hyaline.
Morphology Reproductive morphology Flowers
Flowers in 2-flowered inflorescences; peduncle 2–10 cm. long, furrowed or terete, sometimes with prickles, usually densely glandular; pedicels 5–25 mm. long, furrowed or terete, sometimes with prickles, usually densely glandular; bracts 2–5 mm., linear-lanceolate, hyaline at the edge, often stiffly pilose.
Morphology Reproductive morphology Flowers Calyx
Sepals 7–8 × 1–4 mm., lanceolate, mucronate, 3-nerved, hyaline at the edge, usually stiffly pilose.
Morphology Reproductive morphology Flowers Corolla
Petals c. 10 × 5 mm., white or pale pink or pale mauve.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 10, filaments about 4–5 mm. long, narrowly lanceolate.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary pubescent; stigmas 5.
Morphology Reproductive morphology Fruits
Cocci smooth, pilose; mature rostrum 15–25 × 1·5 mm., shortly pubescent; stigmas 1·5–2·5 mm. long.
Morphology Reproductive morphology Seeds
Seeds smooth, glabrous.

[FTEA]

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

Morphology General Habit
Perennial herb up to 9 dm. long, climbing or trailing, rooting at the nodes; stems herbaceous, longitudinally grooved, armed with sharp reflexed prickles, and with glandular hairs on the younger parts; internodes 2–15 cm. long, 1–3 mm. thick, sometimes pinkish especially the older parts.
Morphology Leaves
Leaves opposite and palmately lobed; lamina 5-lobed, divided to about three-quarters of the radius; lobes 2–12 mm. wide at the base, rhombic in outline, pinnatifid, stiffly pilose on both surfaces, particularly on the veins of the lower surface;petiole 1–10 cm. long, longitudinally grooved, covered with sharp reflexed prickles and often with glandular hairs; stipules divided nearly to the base into lanceolate to linear segments, 3–8 mm. long, often glandular hairy towards the margin, margin often hyaline.
Morphology Reproductive morphology Inflorescences
Inflorescence 2-flowered; peduncle 2–10 cm. long, grooved or terete, sometimes with prickles, usually densely glandular; pedicels 5–25 mm. long; bracts linear-lanceolate, 2–5 mm. long, hyaline along the edges, mostly stiffly pilose.
Morphology Reproductive morphology Flowers Calyx
Sepals lanceolate, 7–8 mm. long, 1–4 mm. wide, mucronate, 3-nerved, hyaline at the edge, usually stiffly pilose outside but glabrous inside.
Morphology Reproductive morphology Flowers Corolla
Petals broadly spathulate, 7–10 mm. long, ± 5 mm. wide, obtuse, white or pale pink to pale mauve.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens:filaments narrowly lanceolate, 4–5 mm. long, scarcely hispid towards the base along the edges; anthers 0.8–1.1 mm. long, 0.5–0.7 mm. wide.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary pubescent; stigmas 1.5–2.5 mm. long, slightly hispid or pubescent.
Morphology Reproductive morphology Fruits
Mericarps smooth, pilose; mature rostrum 15–25 mm. long, 1–1.5 mm. wide, shortly pubescent.
Morphology Reproductive morphology Seeds
Seeds 2–2.8 mm. long, 1–1.4mm. wide, glabrous; testa scarcely reticulate.
Habitat
Upland rain-forest, common at edges, in clearings, along streams and in marshy places, sometimes persisting as a weed in cultivation; 1200–3050 m.
Distribution
K1 K2 K3 K4 K5 T2 T3 T4 T6 T7 T8 U2 U3

Native to:

Burundi, Ethiopia, Kenya, Malawi, Mozambique, Rwanda, Sudan, Tanzania, Uganda, Zaïre

Geranium aculeolatum Oliv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 1985 Schimper, M.W. [665], Ethiopia K000417208 lectotype
Jan 1, 1985 Roth, D. [191], Ethiopia K000417210 Unknown type material
Jan 1, 1985 Schimper [1175], Ethiopia K000417209 Unknown type material

First published in Fl. Trop. Afr. 1: 291 (1868)

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.
  • Edwards, S., Tadesse, M., Demissew, S. & Hedberg, I. (eds.) (2000). Flora of Ethiopia and Eritrea 2(1): 1-532. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.
  • Govaerts, R. (2003). World Checklist of Seed Plants Database in ACCESS G: 1-40325.
  • Kokwaro, J.O. (1971). Flora of Tropical East Africa, Geraniaceae: 1-23.
  • Robyns, W. & al. (eds.) (1948-1963). Flore du Congo Belge et du Ruanda-Urundi 1-10.

Literature

Flora of Tropical East Africa

  • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Brux.) p. 345 (1956).
  • E. Lind & A. Tallantire, Some Common Flowering Plants of Uganda p. 63 (1962).
  • Engl, Hochgebirgsfl. Trop. Afr.: 274 (1892).
  • F. W. Andr., The Flowering Plants of the Anglo-Egyptian Sudan 1: 128 (1950).
  • Laundon in Flora Zambesiaca 2: 131, t. 20/E (1963).
  • Milne-Redh. in Mem. N.Y. Bot. Gard. 8: 230 (1953).
  • Oliv., Flora of Tropical Africa 1: 291 (1868).
  • Petit in Flore du Congo Belge et du Ruanda-Urundi, 7: 23 (1958).
  • R. Knuth in A. Engler, Das Pflanzenreich IV. 129: 203, fig. 26/C–F (1912).

Flora Zambesiaca
Flora Zambesiaca
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Flora of Tropical East Africa
Flora of Tropical East Africa
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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