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

Apocynaceae - Asclepiadoideae - Ceropegieae - Tenaris E.Mey.

Description :

  • Perennial, slender herbs with small, tuberous rootstock
  • Leaves sessile, linear or filiform
  • Flowers 1-3 together, in sessile or pedunculate fascicles, or in slender racemes or panicles
  • Sepals lanceolate, as long as or longer than corolla tube
  • Corolla with a shortly campanulate tube; lobes much longer than tube, linear, linear-spatulate, or filiform
  • Corona 2-seriate, small, arising from staminal column above its base; outer corona of 5 broadly ovate or subquadrate lobes or of minute pouches; inner corona lobes 5, linear-subulate or filiform, incumbent on backs of anthers
  • Staminal column arising from base of corolla, included in corolla tube
  • Anthers 2-locular, usually without appendages
  • Pollinia ellipsoid, subascending, with short caudicles
  • Follicles erect, somewhat diverging, slender, smooth
  • Seeds crowned with a tuft of hairs

Nomenclature:

  • Tenaris E.Mey.
    • Meyer: 198 (1838)
    • Brown: 795 (1908)

Distribution & Notes:

  • Global : Species 7, Africa
  • Southern Africa : Species 4, widespread excluding Namibia, Free State and Lesotho

References:

  • BROWN, N.E. 1908. Asclepiadeae . Flora capensis 4,1
  • MEYER, E.H.F. 1838. Commentariorum de plantis Africae australioris . Voss, Leipzig