Asteraceae
Vernonia

Vernonia upembaensis Kalanda

First published in Bull. Jard. Bot. Natl. Belg. 52: 127 (1982)
This species is accepted
The native range of this species is DR Congo to Zambia.

Descriptions

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

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

Morphology General Habit
A scapiform perennial herb to c. 90 cm. tall, from a small fibrous-rooted woody rootstock.
Morphology Stem
Stems annual, erect, simple or sparingly branched above, brittle, ± angular, sharply strongly ribbed, becoming sulcate, sparsely appressed pilose, or glabrescent.
Morphology Leaves
Leaves 5–10, subrosulate prostrate sessile, 12–18 x 1.5–7 cm., oblanceolate to obovate or broadly elliptic, rounded above with a shortly acuminate apex in broad leaves, tapering-subobtuse in narrow leaves, base attenuate, margins irregularly repand-crenulate; lamina softly coriaceous, minutely, sparsely puberulous on both surfaces; nervation laxly reticulate and somewhat raised below.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula solitary, or 2–3 on bracteate stalks to c. 14 cm. long; bracts up to c. 10 mm. long, subulate.
Morphology Reproductive morphology Inflorescences Bracts Involucre
Involucres c. 15 x 15–18 mm., broadly campanulate, later spreading-hemispheric to c. 30 mm. wide.
Morphology Reproductive morphology Inflorescences Bracts Phyllaries
Phyllaries stiffly coriaceous, numerous, many-seriate, imbricate, shortly whitish- or brownish-woolly outside, finely-ciliate or cobwebby on the margins; outer phyllaries from c. 2 mm. long, triangular to ovate mucronate; middle phyllaries c. 10 x 3 mm., oblong, tapering or ± abruptly narrowed to a mucronate apex; inner phyllaries narrower to c. 12 mm. long, linear.
Morphology Reproductive morphology Flowers Receptacle
Receptacle shallowly alveolate.
Morphology Reproductive morphology Flowers Corolla
Corollas ?purple, c. 10 mm. long, narrowly tubular, widening into a limb with lobes 2–3 mm. long.
Morphology Reproductive morphology Fruits
Achenes c. 6 mm. long, subfusiform-cylindric, stramineous, with c. 7 narrow raised ribs, glabrous, glandular between ribs; outer pappus of fimbriate seta-like scales, 1.5–2 mm. long, inner of white plumose setae c. 8 mm. long.
[FZ]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora Zambesiaca

    • Flora Zambesiaca
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0