1. Family: Asteraceae Bercht. & J.Presl
    1. Dendrosenecio (Hauman ex Hedberg) B.Nord.

      1. This genus is accepted, and is native to Africa..

    [FTEA]

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

    Habit
    Perennial giant-rosette plants to 10 m tall with woody trunks; typically upright and polycarpic, with branching initiated below each terminal inflorescence, sometimes monocarpic or creeping; primary stem 2–12 cm wide, comprised mainly of pith, which provides internal water capacitance; secondary growth produces abundant white wood and a grey, furrowed bark
    Seeds
    Seedlings and young plants with leaves commonly constricted toward the base, forming a pseudo-petiole, particularly when growing in partial shade
    Leaves
    Developing leaves of mature plants revolutely folded, the upper lamina glabrescent; commonly bathed in mucilage, an ice-nucleating pectinaceous material that in some species is secreted among the leaf bases and may collect in the leaf-rosette Leaves alternate (although appearing whorled in densely packed leaf-rosettes), to 120 cm long and 35 cm wide, simple, in rosettes of 10–100, with developing leaves often reaching almost mature length in a massive ‘apical bud’ before unfurling to join the leaf-rosette; leaf base wide, sheathing, often with a dense cushion of white trichomes on the upper surface; leaf margin occasionally entire, but usually serrate or dentate, tipped with hydathodes; indumentum of lower lamina comprising multicellular, uniseriate trichomes, variable among species, but generally villose along the lower midvein
    Inflorescences
    Inflorescence to 2.5 m tall, erect, pyramidal-paniculate or cylindrical, densely pubescent to glabrescent; bracteate, with a range of transitional shapes from the mature vegetative leaves subtending the peduncle to the small bracts subtending each capitulum; capitula numerous, with biseriate involucral bracts; outer bracts 5–23, filiform, 5–18 mm long; inner bracts 10–25, narrow to broadly ovate, 11–16 x 2–6 mm, with apical papillae; receptacle nude
    Ray
    Ray florets absent or 6–20, yellow, female, with staminodes sometimes present, ray 2–23 x 2–5 mm; tube 4–8 mm long
    Florets
    Disc florets 30–380, yellow, hermaphrodite, 8–10 mm long; style with a continuous stigmatic surface; anthers non-auriculate, filament collars balusteriform Ray florets absent or 6–20, yellow, female, with staminodes sometimes present, ray 2–23 x 2–5 mm; tube 4–8 mm long
    Disc
    Disc florets 30–380, yellow, hermaphrodite, 8–10 mm long; style with a continuous stigmatic surface; anthers non-auriculate, filament collars balusteriform
    Fruits
    Achenes glabrous, 8–10-ribbed; pappus of many bristles.

    Images

    Distribution

    Native to:

    Kenya, Rwanda, Tanzania, Uganda, Zaïre

    Dendrosenecio (Hauman ex Hedberg) B.Nord. appears in other Kew resources:

    First published in Opera Bot. 44: 40 (1978)

    Accepted by

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

    Literature

    Flora of Tropical East Africa
    • E. B. Knox in Contr. Univ. Michigan Herb. 19: 243 (1993)
    • C. Jeffrey in K.B. 41: 887 (1986)
    • B. Nord. in Opera Bot. 44: 40 (1978)
    • Mabb. in K.B. 28: 80 (1973)
    • A.V.P.: 226 (1957)
    • in Rev. Zool. Bot. Afr. 28: 31 (1935)

    Sources

    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 2019. 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 2019. 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