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This genus is accepted, and its native range is Tropical & S. Africa.
A specimen from Kew's Herbarium

[FTEA]

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
 Perennial or rarely annual herbs, often with annual shoots from a woody rootstock, or shrubs; indument of flagelliform or asymmetric T-shaped hairs, with uniseriate multicellular stalks each bearing an elongate erect or eccentric terminal cell
Morphology Leaves
Leaves alternate, opposite or mixed, or whorled, aromatic, variously serrate
Morphology Reproductive morphology Inflorescences Capitulum
Capitula rarely few, usually numerous in lax to often congested terminal and upper axillary compound corymbiform cymes; bracteoles usually inconspicuous; involucres hemispherical to narrowly obconic-cylindrical, phyllaries 3-5-seriate, the inner progressively longer than the outer, imbricate, usually darker and often pubescent centrally below the apex, with often conspicuous pale membranous margins fimbriate-pectinate towards the apex; receptacle plane or alveolate, rarely paleate
Morphology Reproductive morphology Flowers Florets
Florets little to rather conspicuously exserted from the involucre, with cylindrical tube and infundibuliform limb, glandular and in the lower part often sparsely pubescent, lobes 5, narrow, glabrous or rarely with a few hairs at the apex, purple, mauve, lilac, blue or white; anthers subacute at base, the distal appendage lanceolate; style distally hairy, the long arms also hairy
Morphology Reproductive morphology Fruits
Achenes brownish, prismatic or cylindrical, generally with 4-8 rounded ribs, usually glandular between the ribs, with or without a denticulate cartilaginous apical collar; pappus very caducous, of few short, slightly barbellate bristles, or absent.

[FZ]

Compositae, G. V. Pope. Flora Zambesiaca 6:1. 1992

Morphology General Habit
Annual or perennial herbs, often suffrutescent with annual stems from a woody rootstock, or shrubs.
Morphology General Indumentum
Vegetative indumentum consisting of flagelliform or ± asymmetric T-shaped hairs with uniseriate multicellular stalks each bearing an elongate erect or ± excentric terminal cell.
Morphology Leaves
Leaves alternate, opposite or opposite on lower stem and alternate above, or in whorls of 3, sessile or petiolate.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula homogamous and discoid, usually small and few to numerous, laxly arranged or clustered in corymbiform cymes, or solitary.
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucre ± campanulate to cyathiform; phyllaries increasing in size to the inside, membranous or cartilaginous or somewhat scarious, usually with a distinct subhyaline margin.
Morphology Reproductive morphology Flowers Receptacle
Receptacle plane or alveolate, occasionally paleate on the outside.
Morphology Reproductive morphology Flowers Corolla
Corollas purple or mauve, regular, narrowly infundibuliform, with a deeply 5-lobed limb.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers lanceolate-appendiculate at the apex, subacute at the base, the connective ± slightly swollen near the base.
Morphology Reproductive morphology Flowers Gynoecium Style
Style arms linear-terete, hairy.
Morphology Reproductive morphology Fruits
Achenes subcylindric-angular not or hardly tapering above, apex ± truncate with a cupuliform depression, bluntly 3–6-angular and smooth or sparsely glandular between; or achenes narrowly obovoid-oblong, rounded above with a rimmed, shallow apical depression and with 4–5(8) low broad ribs separated by dark-brown gland-filled grooves; or achenes subcylindric-ellipsoid often somewhat curved, rounded to truncate above with a distinct apical cup or crenate cartilaginous rim, ± angular or narrowly 4–9-ribbed, glabrous or sparsely glandular between the ribs.
Morphology Reproductive morphology Seeds
Pappus of few very caducous barbellate setae, or pappus absent.

Native to:

Angola, Burundi, Cameroon, Ethiopia, Gabon, Guinea, Kenya, Malawi, Mozambique, Northern Provinces, Rwanda, Sierra Leone, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Bothriocline Oliv. ex Benth. appears in other Kew resources:

First published in Hooker's Icon. Pl. 12: 30 (1873)

Accepted by

  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Literature

Flora Zambesiaca

  • C. Jeffrey in Kew Bull.43: 257–266 (1988).
  • Wild & G.V. Pope in Kirkia 10: 317, 364 (1977).
  • in Hook., Ic. Pl.12: 30, t. 1133 (1876).

Flora of Tropical East Africa

  • C. Jeffrey in K.B. 43: 257 (1988)
  • K. Bremer, Asteraceae Clad. & Class.: 218 (1994)
  • in Hook., Ic. Pl. 12: 30, t. 1133 (1877)

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