e-Key v3 - Key to Vernonieae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Pappus 0, cypsela crowned with apical rim
* Ethulia
b
  • Pappus of bristles or scales
002
Backtrack a
  • Pappus of a few, caducous bristles
002
b
  • Pappus in 2 rows, outer row of short scales or rarely bristles, inner row of many long, serrated bristles
002
Backtrack a
  • Leaves alternate, minutely pellucid-dotted; pappus bristles shortly hairy
Erlangea
b
  • Leaves opposite or whorled, not pellucid-dotted; pappus bristles hispid
Bothriocline
Backtrack a
  • Flowers yellow or orange and/or leaves trinervate
Distephanus
b
  • Flowers creamy-white, shades of purple or blue; leaves pinnately veined
002
Backtrack a
  • Pollen without colpi; endothecial tissue with cells thickened on both horizontal and radial walls; filament collars narrowly cylindrical, elongate, straight; style bases conspicuously ring-like
* Cyanthillium
b
  • Pollen with colpi; endothecial tissue polarised; filament collars and style bases different
002
Backtrack a
  • Inner involucral bracts with membranous and frequently coloured, spreading appendages; style bases surrounded by long keeled nectaries
Baccharoides
b
  • Inner involucral bracts without appendages; style bases different
Vernonia

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