e-Key v3 - Abutilon
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Malvaceae - Malveae - Abutilon Mill.

Description :

  • Herbs, suffrutices or shrubs, mostly erect, often softly tomentose
  • Leaves simple, usually ± ovate, often cordate, usually long-petioled
  • Flowers axillary, solitary or fascicled; pedicels usually articulated
  • Epicalyx 0
  • Calyx ± campanulate
  • Petals much longer than calyx, generally orange to yellow, rarely white
  • Staminal tube shorter than petals, divided at apex into many filaments, dilated towards base, ± glabrous to stellately hairy
  • Gynoecium : carpels 5-40, each with (1)2 ovules; style branches as many as carpels, filiform; stigmas capitate
  • Fruit a subglobose to cylindrical to almost disc-shaped schizocarp, often with depressed centre, of 5-40 laterally compressed, follicular 1-3(-9)-seeded mericarps with rounded, truncate, acute or awned apex and ventral side usually with a distinct tooth, originally fitting over top of torus; after separation mericarps often remaining pendulous on a basal carpophore
  • Seeds reniform, glabrous to sparsely stellate-tomentose
  • x = 7 (8, 9) (high polyploidy)

Nomenclature:

  • Abutilon Mill.
    • Miller: [23] (1754)
    • Harvey: 168 (1860)
    • Meeuse: 484 (1960)
    • Roessler: 1 (1969)

Distribution & Notes:

  • Global : Species 100 or more, cosmopolitan in tropics and subtropics
  • Southern Africa : Species 22, only 1 in winter-rainfall area; mostly in sunny, relatively dry, open situations; some pantropical weeds; some forms cultivated for their decorative flowers

References:

  • HARVEY, W.H. 1860. Malvaceae Juss. Flora capensis 1
  • MEEUSE, A.D.J. 1960. In A.W. Exell, Malvaceae . Flora zambesiaca 1
  • MILLER, P. 1754. The gardener's dictionary , abridged edn 4. Rivington, London
  • ROESSLER, H. 1969. Malvaceae (in part). Prodromus einer Flora von Südwestafrika 82