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

[FTEA]

Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

Morphology General Habit
Suffrutescent herbaceous climber.
Vegetative Multiplication Tubers
Tuber hemi-spherical, up 20 cm diameter.
Morphology Stem
Aerial stems annual, branching lateral, twining, up to 1 m long, velutinous
Morphology Leaves
Leaf petiole (0.7–)1.5–2.5(–4) cm long, velutinous; blade herbaceous to coriaceous, narrowly ovate, ovate, elliptic, narrowly obovate or obovate, (4–)5–11(–21) × (1.5–)3–7(–9) cm, acute to obtuse-mucronate, base cuneate to obtuse, dark green above, pale green beneath, velutinous to tomentose, lateral veins semi-divaricate
Morphology Reproductive morphology Inflorescences
Inflorescences axillary, compact, 10–15-flowered fascicle of monochasia, velutinous.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles 3–15 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts broadly ovate, 1–2 mm long.
Morphology Reproductive morphology Flowers Pedicel
Pedicels 2–6 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals broadly triangular, broadly ovate or ovate, 2–3 × 1–2 mm, acute to obtuse, outside velutinous, green tinged red
Morphology Reproductive morphology Flowers Corolla
Corolla tube campanulate, 2–4 mm long, greenish, glabrous; lobes reflexed, greenish-yellow to green with brown, reddish-brown or purplish-brown markings near base of lobe, ovate, 5–6(–12) × 3–4 mm, acute to obtuse, outside tomentose
Morphology Reproductive morphology Flowers Corona
Corona pale yellow, pale green or green, glabrous, lobes trisegmented to tripartite; central segment filiform to acicular, 2–5 mm long, apex simple or bifid; lateral segments acicular to claw-shaped
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Staminal filaments filiform, 1–2 mm long, base dilated.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers greenish to white, narrowly ovate, 2 mm long, acute to acuminate
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2–3 mm long, terete; style-head ovoid, ± 2 mm long, acute
Morphology Reproductive morphology Flowers Gynostegium
Gynostegium elevated above corolla mouth.
Morphology Reproductive morphology Fruits
Follicles solitary or rarely paired, narrowly ovoid, tapering, 4–6 cm long, 1–1.3 cm wide.
Morphology Reproductive morphology Seeds
Seeds brown, obliquely ovate, 7 mm long; coma coppery coloured, 2.5 cm long
Figures
Fig 48, p 156
Ecology
Miombo woodland and grassland; 400–1600 m
Distribution
Flora districts: T4 T6 T7 T8 Range: Angola, Malawi, Mozambique, Congo-Kinshasa, Zambia, Zimbabwe

Native to:

Angola, Malawi, Mozambique, Tanzania, Zambia, Zaïre, Zimbabwe

Raphionacme welwitschii Schltr. & Rendle appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2008 Bingham [12624], Zambia K000612566
Jan 1, 2008 Bingham [12632], Zambia K000612567
Jan 1, 2008 Bingham, M. G. [12624], Zambia K000438748
Jan 1, 2008 Bingham, M. G. [12632], Zambia K000438749
Jan 1, 2007 Luke [11598], Tanzania K000469047
Leedal, G.P. [5267], Tanzania 40317.000
Schaijes, M. [2637], Congo, DRC 50428.000
Schaijes, M. [2656], Congo, DRC 50440.000
Goyder, D.J. [3864], Tanzania 59809.000
Goyder, D.J. [4006], Kenya 59828.000
Welwitsch [4234], Angola K000234162 Unknown type material
Brown, N.E. [s.n.] K000234163 Unknown type material
Milne-Redhead, E. [2546], Zambia Raphionacme denticulata 31213.000

First published in J. Bot. 34: 97 (1896)

Accepted by

  • Albers, F. & Meve, U. (eds.) (2002). Illustrated handbook of succulent plants Asclepiadaceae, corr. 2nd printing: 1-318. Springer, Berlin, Heidelberg,New York.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Flora Zambesiaca 7(3): 1-375. Royal Botanic Gardens, Kew.
  • Goyder, S., Harris, T., Masinde, S., Meve, U. & Venter, J. (2012). Flora of Tropical East Africa, Apocynaceae(2): 1-530.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Literature

Kew Backbone Distributions

  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Venter, H.J.T. (2009). A taxonomic revision of Raphianacme (Apocynaceae: Periplocoideae) South African Journal of Botany 75: 292-350.

Flora of Tropical East Africa

  • Cribb & Leedal, Mt Fl. S. Tanz.: 103, t. 23c (1982)
  • Illustr. Handb. Succ. Pl.: Asclepiadaceae: 228 (2002).
  • J.B. 34: 97 (1896)

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