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

DICOTYLEDON - ASTERIDAE - ASTERALES - Asteraceae - Plucheeae

Compiled by P.P.J. Herman, E. Retief, M. Koekemoer and W.G. Welman

Description :

  • Herbs or shrubs
  • Leaves alternate or sometimes subopposite, entire, dentate, serrate or lobed to pinnatifid, sometimes clasping or ± decurrent and sometimes forming stem wings; with hairs of type A (multiseptate hairs with short cells)
  • Capitula disciform
  • Involucral bracts generally imbricate in several rows, chartaceous or herbaceous
  • Receptacle generally flat, epaleate
  • Outer florets female; corolla filiform, purple, pink, rarely yellow or whitish, 3-lobed
  • Central florets bisexual or functionally male, purple or sometimes yellow or whitish, 4- or 5-lobed
  • Anthers calcarate, caudate or ecaudate; endothecial tissue of elongate cells, radial; filament collar flattened or mamillose
  • Style with oblong-linear, rounded style branches with hairs far down shaft below bifurcation; hairs obtuse or sometimes ± acute; stigmatic areas in 2 apically confluent lines
  • Cypselas ellipsoid, turbinate or triquetrous, glabrous or hairy with straight or uncinate to anchor-shaped twin hairs, sometimes with prominent red-brown resin deposits in wall
  • Pappus of barbellate, capillary bristles in 1 row or of elongated scales, generally free, sometimes forming small ring-shaped cup of scales; rarely 0

Nomenclature:

  • Plucheeae
    • Anderberg: 2293 (1989)
    • Anderberg: 154 (1991)
    • Anderberg: 296 (1994)

Distribution & Notes:

  • Global : 28, mainly tropical or subtropical, with some in arid areas of South America, Africa, Asia and Australia
  • Southern Africa : Genera 7, species 22

References:

  • ANDERBERG, A.A. 1989. Phylogeny and reclassification of the tribe Inuleae ( Asteraceae ). Canadian Journal of Botany 67
  • ANDERBERG, A.A. 1991. Taxonomy and phylogeny of the tribe Plucheeae ( Asteraceae ). Plant Systematics and Evolution 176
  • ANDERBERG, A.A. 1994. Tribes Inuleae , Plucheeae , Gnaphalieae . In K. Bremer, Asteraceae , cladistics and classification . Timber Press, Portland, Oregon