1. Family: Asteraceae Bercht. & J.Presl
    1. Ageratinastrum Mattf.

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

    [FZ]

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

    Habit
    Perennial herbs with annual stems from woody rootstocks.
    Indumentum
    Vegetative indumentum of short-stalked flagelliform hairs.
    Stem
    Stems many, densely leafy, with short internodes, branching above.
    Leaves
    Leaves alternate or spirally arranged, opposite or whorled, sessile to shortly petiolate, felted-tomentose, sparsely pilose or glabrescent, glandular-punctate.
    Capitulum
    Capitula homogamous, numerous, in lax or ± dense clusters at the ends of branches, or the capitulum-clusters arranged in a large corymbiform cyme, occasionally the capitula somewhat scorpioidly arranged.
    Involucre
    Involucres campanulate to subglobose, florets exserted; phyllaries several-seriate, progressively larger to the inside.
    Receptacle
    Receptacle flat, shallowly alveolate.
    Corolla
    Corollas purple or mauve, darker in the upper half, regularly 5-lobed, lobes lanate or pilose.
    Anthers
    Anthers with a broad hyaline apical appendage and short acute tails at the base.
    Style
    Style-arms subulate, hairy outside.
    Fruits
    Achenes obovoid-oblong or turbinate, 4–5-sided and obscurely ribbed on the angles, truncate at the apex, smooth or strongly rugose on the faces between the ribs, glabrous or sparsely setulose, minutely brown gland-dotted.
    Seeds
    Pappus persistent, of ± united broad shiny scales lacerate on the upper margin, or of scales sometimes free and alternating with paleaceous setae.
    Pollen
    Pollen described as triporate, lophate and emicropunctate.
    [FTEA]

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

    Habit
    Perennial herbs with annual stems from a woody rootstock; stems many, densely leafy, with flagelliform hairs
    Leaves
    Leaves alternate or opposite, glandular-punctate
    Capitulum
    Capitula homogamous; involucre with several series of phyllaries; receptacle flat
    Corolla
    Corolla regularly 5-lobed, with hairy lobes.
    Anthers
    Anthers with wide hyaline appendage and short tails.
    Style
    Style branches subulate, hairy on outside
    Fruits
    Achenes 4–5-angled, truncate at apex, glandular; pappus of lacerate scales or of alternating scales and setae.

    Images

    Distribution

    Native to:

    Malawi, Tanzania, Zambia, Zaïre

    Ageratinastrum Mattf. appears in other Kew resources:

    First published in Notizbl. Bot. Gart. Berlin-Dahlem 11: 412 (1932)

    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: 270–271 (1988).
    • Wild & G.V. Pope in Kirkia 10: 326, 357 (1977).
    • in Notizbl. Bot. Gart. Berl.11: 412 (1932).
    Flora of Tropical East Africa
    • K. Bremer, Asteraceae Clad. & Class.: 216 (1994)
    • G.V. Pope in F.Z. 6: 180 (1992)
    • C. Jeffrey in K.B. 43: 270 (1988)
    • in N.B.G.B. 11: 412 (1932)

    Sources

    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 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