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This species is accepted, and its native range is S. DR Congo to Botswana.
A specimen from Kew's Herbarium

[FZ]

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

Morphology General Habit
An erect robust silvery-grey suffrutex, 15–80 cm. tall, from a woody rootstock.
Morphology Stem
Stems annual, 1-many, simple or sometimes branching near the apex, leafy usually to apex, densely greyish lanate.
Morphology Leaves
Leaves stiff, silvery-grey, concolorous, sometimes paler beneath, bullate, stem-sheathing briefly at the base, mostly 8–25 x 2–7.5 cm., elliptic, tapering acute at the apex; cuneate below, tapering into a narrowly winged petiole-like midrib up to c. 30 mm. long before widening into a short membranous lanate sheathing-base to c. 10 mm. long; margins irregularly serrate, sometimes obscurely so; finely araneose-lanate on both surfaces often more densely so beneath; main nerves 12–20 on each side of the midrib, impressed on the upper surface and prominent beneath, tertiary venation reticulate and prominent beneath.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula large, usually solitary and terminal on each stem, occasionally 2–4 subsidiary heads in axils below, capitula stalks often somewhat thickened and densely grey- or fulvous-lanate below the capitula.
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucres mostly 20–40 x 25–40 mm., spreading to c. 60 mm. wide, turbinate.
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
Phyllaries numerous, stiffly coriaceous, at first appressed imbricate soon loosely spreading, usually persistently close felted-lanate outside, sometimes glabrescent, margins often narrowly hyaline purple-tinged and glabrous; the lowermost phyllaries scattered on the capitulum stalk, mostly from 5–12 mm. long, sometimes to c. 15 mm. long, narrowly triangular to linear-lanceolate increasing to c. 25 mm. long, sometimes to 30 mm. long, and becoming linear inside; middle phyllaries up to 8 mm. wide, lorate-lanceolate or oblong; inner phyllaries narrower.
Morphology Reproductive morphology Flowers Florets
Florets numerous, corollas bright- or deep-red, up to c. 30 mm. long, with a long slender tube abruptly dilated into a short cylindric deeply-lobed limb which exceeds the pappus and involucre, glabrous; corolla lobes 6–7 mm. long, linear.
Morphology Reproductive morphology Fruits
Achenes 9–14 mm. long, narrowly cylindric, obscurely many-ribbed, densely appressed hispid; pappus of copious barbellate setae to c. 18 mm. long.

[FTEA]

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

Morphology General Habit
Herb with woody tuberous rootstock, ± 30 cm tall, erect; stems thickly white-tomentose.
Morphology Leaves
Leaves sessile; blade elliptic, 8–25 cm long, 2–7.5 cm wide, rounded to attenuate into a short petioloid basally expanded ± sheathing base, serrate, ± acute, grey with persistent tomentum on both surfaces, with numerous subparallel ascending veins, strongly rugose with impressed minor venation above.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula solitary, terminal, on short bracteate stalks; involucre narrowly ovoid to obconic, up to ± 42 mm long, thinly white-tomentose especially on outer phyllaries; phyllaries ± 6-seriate, rather rigid, oblong, rounded, finely arachnoid-tomentose in upper part, glabrescent, the longest 25–30 mm long.
Morphology Reproductive morphology Flowers Florets
Florets with corolla bright red to crimson, ± 30 mm long, lobes oblong-lanceolate, 7 mm long.
Morphology Reproductive morphology Fruits
Achenes 9–14 mm long, strongly 5-ribbed, ascending-pilose; pappus pale stramineous, 13.5–18 mm long.

Native to:

Angola, Botswana, Tanzania, Zambia, Zaïre

Pleiotaxis eximia O.Hoffm. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Kassner [2801], Congo K000252294

First published in Bot. Jahrb. Syst. 15: 539 (1893)

Accepted by

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

Literature

Flora of Tropical East Africa

  • C. Jeffrey in Kew Bulletin 21: 193 (1967).
  • G.V. Pope in Flora Zambesiaca 6: 16 (1992).
  • Lisowski, Aster. Fl. Afr. Centr. 1: 524 (1991).
  • O. Hoffm. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 15: 539 (1893).

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

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