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

Commelinaceae - Commelinoideae - Tradescantieae - *Tradescantia L.

Description :

  • Perennial herbs; stems simple to diffusely branched, erect or trailing, sometimes rooting at nodes
  • Leaves distichous, oblong-ovate to linear
  • Inflorescence terminal and/or axillary, of paired, sessile cymes, each pair subtended by leaf-like or spathe-like bracts
  • Flowers bisexual, regular, pedicellate, few to many
  • Sepals free, green or coloured
  • Petals free, obovate to orbicular, white
  • Stamens 6, equal; filaments bearded
  • Ovary 3-celled, with (1)2 superposed ovules in each cell
  • Fruit a loculicidal capsule
  • Seeds variable; hilum linear to punctate; embryotega dorsal
  • x = 6 (7, 8, 10, 11, 13, 19, 23, 37) (aneuploids, very high polyploidy)

Nomenclature:

  • *Tradescantia L.
    • Linnaeus: 288 (1753)
    • Brückner: 166 (1930)
    • Obermeyer & Faden: 59 (1985)

Distribution & Notes:

  • Global : Species ± 60, North and South America; several in cultivation
  • Southern Africa : Species 1: * Tradescantia fluminensis Vell., naturalised, Mpumalanga and KwaZulu-Natal

References:

  • BRÜCKNER, G. 1930. Commelinaceae . Die natürlichen Pflanzenfamilien , edn 2, 15a
  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm
  • OBERMEYER, A.A. & FADEN, R.B. 1985. Commelinaceae . Flora of southern Africa 4