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

[FZ]

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

Morphology General Habit
Decumbent annual herb; primary stem: ± ascending, branched; branches up to 1 m. long, weak and straggling; internodes 2–6 (10) cm. long; vegetative parts, peduncles and pedicels glandular and pubescent; hairs patent or ± appressed on the leaves; glands short-stalked to sessile.
Morphology Leaves
Leaf-lamina 1·5–4·5 (6) × 1·5–4·5 (6) cm., deltoid to broadly or very broadly ovate, apex subacute to obtuse, margin crenate, base cordate, almost unlobed to shallowly 3- or 5 (or 7)-lobed, membranous; petiole 1–3 cm. long; stipules 2–4 (7) × 1–3 (4) mm., lanceolate to ovate or deltoid, acute, often 2-fid, membranous; petioles 1–3 cm. long, 0·5–2·5 cm. long.
Morphology Reproductive morphology Inflorescences
Inflorescence a 1–2 (3)-flowered pseudumbel; peduncle leaf-opposed or in the axil of the smaller of 2 apparently opposite leaves, bearing a terminal pseudumbel of 1–2 (3) flowers; bracts 3–6, 1·5–2 × 0·5–0·8 mm., lanceolate or narrowly deltate, acute, membranous; free part of pedicel (3) 5–12 mm., long.
Morphology Reproductive morphology Flowers Spur
Spur 1–2 (3) mm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals 2·5–4 × 0·5–2·5 mm., narrowly oblong to lanceolate, acute, ± patent, pilose and glandular.
Morphology Reproductive morphology Flowers Corolla
Petals 5 (4) or absent (in N. Nyasaland and Tanganyika), pink, 1·7–2 (2·5) × 0·5–0·7 mm., 2 posterior ones asymmetrically spathulate; 3 (2) anterior ones narrowly obovate, unguiculate, fertile filaments 2–3 (5), 1·8–2 mm. long.
Morphology Reproductive morphology Flowers Androecium
Stamens with sterile filaments (staminodes) (5) 7–8, 0·9–1·2 mm. long, all 9 or 10 connate at the base for 0·5 mm.; anthers 0·3–0·5 × 0·3–0·5 mm.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary often only 3–4-locular by abortion, with basal part tomentose; rostrum pubescent; style 0·2 mm. long; stigma 0·5 mm. long.
Morphology Reproductive morphology Fruits
Fruit 0·7–1·2 cm. long; cocci 2–8 × 1–2 mm.
Morphology Reproductive morphology Seeds
Seeds 1·8–2·4 × 0·8–1·2 mm., pale brown.

[FTEA]

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

Morphology General Habit
Annual decumbent herb; primary stem ± ascending, branched; branches up to 1 m. long, usually slender (not more than 2.2 mm. in diameter), longitudinally grooved, sparsely pubescent and glandular, weak and straggling; internodes 2–6(–10) cm. long; vegetative parts, peduncle and pedicels glandular and pubescent; hairs patent, or somewhat appressed on the leaves; glands short-stalked to sessile.
Morphology Leaves
Leaves mostly opposite (one of every pair at each node usually smaller than the the other), those towards the root occasionally alternate; lamina deltoid to broadly ovate, l.5–4.5(–6) cm. long and wide, subacute to obtuse at the apex, margin crenate, the base cordate, almost unlobed to shallowly 3– or 5(rarely 7)-lobed, membranous, hispid on both surfaces; petiole 0.8–4.8 cm. long; stipules lanceolate to ovate or deltoid, 2–4(–7) mm. long, 1–4 mm. wide, acute, often bifid, membranous, glabrous on both surfaces but ciliate along the margins.
Morphology Reproductive morphology Inflorescences
Inflorescence of 2 (rarely 3) flowers or the flowers frequently solitary; peduncle 5–10 mm. long, leaf-opposed or in the axil of the smaller of the 2 apparently opposite leaves; free part of the pedicel 3–12 mm. long; bracts 3–6 per pedicel, lanceolate or narrowly deltoid, 1.5–2 mm. long, 0.5–0.8 mm. wide, acute, membranous.
Morphology Reproductive morphology Flowers Calyx
Sepals narrowly oblong to lanceolate, 2.5–4 mm. long, 0.5–2.5 mm. wide, acute, pilose and glandular, usually pinkish in colour.
Morphology Reproductive morphology Flowers Spur
Spur 1–3 mm. long, glandular.
Morphology Reproductive morphology Flowers Corolla
Petals absent or if present (as in Rhodesian specimens) not more than 2.5 mm. long.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 9 or 10, all connate at the base for 0.5 mm.; antheriferous group 2–3(5), 1.8–2 mm. long; staminodes (5–)7–8, 0.9–1.2 mm. long:anthers as long as wide, 0.3-0.5 mm.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary usually 3–4-locular by abortion, with basal part tomentose; rostrum pubescent; style 0.2 mm. long, hispid to pubescent; stigmas 4 in Flora area, ± 0.5 mm. long, usually twisting around each other.
Morphology Reproductive morphology Fruits
Fruit 0.7–1.2 cm. long, hispid or pubescent; mericarps 2.8 mm. long, 1.2 mm. wide, sparsely pubescent.
Morphology Reproductive morphology Seeds
Seeds 1.8–2.4 mm. long, 0.8–1.2 mm. wide, glabrous; testa minutely reticulate, pale brown.
Figures
Fig. 4.
Habitat
Upland secondary bushland derived from rain-forest, on hillslopes and rocky ground, becoming a weed in cultivation; 1500–2000 m.
Distribution
T8

Native to:

Malawi, Tanzania, Thailand, Zimbabwe

Pelargonium apetalum P.Taylor appears in other Kew resources:

First published in Hooker's Icon. Pl. 36: t. 3579 (1962)

Accepted by

  • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.
  • Kokwaro, J.O. (1971). Flora of Tropical East Africa, Geraniaceae: 1-23.

Literature

Kew Backbone Distributions

  • Exell, A.W., Fernandes, A. & Wild, H. (eds.) (1963). Flora Zambesiaca 2(1): 1-351. Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Müller in Flora Zambesiaca 2: 145 (1963).
  • P. Taylor in Hook., Ic. Pl. 36, t. 3579 (1962).

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