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This species is accepted, and its native range is Tropical Africa.
DICOMA SESSILIFLORA Harv. (COMPOSITAE)

[FZ]

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

Morphology General Habit
A slender, erect perennial herb, to c. 1 m. tall from a small woody rootstock; roots numerous, thong-like.
Morphology Stem
Stems annual, usually solitary, simple, leafy with the largest leaves somewhat clustered on the lower stem, closely appressed white araneose-lanate to glabrescent.
Morphology Leaves
Leaves discolorous, sessile; lower-stem leaves 12–27 x (1.5)2–6 cm., oblanceolate, broadest above the middle and tapering-attenuate to the base; upper-stem leaves fewer, becoming linear and shorter; apices subobtuse to acute, bases narrow semi-amplexicaul; margins sparsely serrulate or slightly revolute; green and glabrous on upper surface, white araneose-lanate beneath (the indumentum sometimes peeling off); venation finely reticulate and prominent on both surfaces although obscured by the indumentum below.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula few to numerous, spicately arranged, 1–2 sessile in upper leaf axils with others somewhat clustered at the stem apex, or less often shortly stalked and subpaniculate.
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucres mostly 20–30 x 16–30 mm., spreading to c. 40 mm., broadly obconic.
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
Phyllaries numerous, greenish-stramineous, stiffly chartaceous, araneose-ciliate becoming pectinate-ciliate on the margins otherwise glabrous; the outer 6–9 series stiffly diverging-ascending, the outermost 2–4 series patent to reflexed, increasing from c. 6 mm. long outside to c. 30 mm. long inside, lanceolate-subulate, flat and broadly pale scarious-winged in lower part, long pungent-acuminate above with the margins inrolled; the innermost 2–3 series of phyllaries shorter, lorate or narrowly oblong, cuspidate, white scarious.
Morphology Reproductive morphology Flowers Corolla
Corollas yellowish, c. 10 mm. long, infundibuliform; lobes c. 5 mm. long, linear, erect; achenes to c. 4 mm. long, turbinate, densely long-ascending hispid; pappus copious, several seriate, of plumose setae c. 9 mm. long, shorter on the outside, seta bristles c. 1 mm. long.

[FWTA]

Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A perennial herb with pithy stems from a few inches to 4 ft. high from a woody stock
Morphology Reproductive morphology Flowers Florets
Florets yellowish in heads 1-1/2 in. long
Morphology Leaves
The leaves often tinged wine-red
Ecology
In stony or rocky places in savanna.

[FTEA]

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

Morphology General Habit
Erect perennial herb 30–110 cm tall; stems white-tomentose.
Morphology Leaves
Lower leaves lanceolate to obovate, 11–22 cm long, 0.5–5 cm wide, attenuate or attenuate-cuneate into a membranous slightly expanded non-sheathing base, minutely remotely serrulate, apex obtuse to acute, apiculate, dark green and glabrous above, white-tomentose beneath, with or without a prominent ascending subbasal vein on each side; upper stem and inflorescence leaves generally narrower, narrowly oblanceolate to oblong-linear, 8–22 cm long, 0.5–2.5 cm wide.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula shortly pedunculate or subsessile, terminal and in axils of upper leaves, forming ± racemiform or corymbiform cymose clusters, discoid; involucre 20–40 mm long; phyllaries ± 100–120, multiseriate, the outer spreading, lanceolate, glabrous, pallid with paler membranous, minutely or distinctly pectinate-ciliate margins, becoming progressively longer inwards, acuminate, pungent, the longest 22–32 mm long, the innermost shorter, oblong, obtuse, excurrent-apiculate.
Morphology Reproductive morphology Flowers Florets
Florets ± 35–50, all tubular, hermaphrodite; corolla yellow, glabrous, 7–13 mm long, lobes narrow, 4.5–7 mm long.
Morphology Reproductive morphology Fruits
Achenes 3 mm long, densely hirsute with long ascending white or tawny hairs; pappus of unequal plumose bristles, 6.5–11 mm long.

Native to:

Angola, Benin, Burkina, Cameroon, Central African Repu, Chad, Ethiopia, Ghana, Guinea, Malawi, Mali, Mozambique, Namibia, Nigeria, Senegal, Sudan, Tanzania, Togo, Zambia

Macledium sessiliflorum (Harv.) S.Ortiz appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Jan 1, 2008 Kayombo, C.J. [4249], Tanzania Dicoma sessiliflora K000612973

First published in Taxon 50: 742 (2001)

Not accepted by

  • Roskov Y. & al. (eds.) (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands. [Cited as Dicoma sessiliflora subspec. sessiliflora.]

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

Flora of West Tropical Africa
Flora of West Tropical Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

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