e-Key <span id="jodit_selection_marker_1699882150463_9545358934586916" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Teph<span id="jodit_selection_marker_1699882150463_6097583946528997" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>rosia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Fabaceae - Papilionoideae - Tephrosieae - Tephrosia Pers.

Description:

  • Annual or perennial herbs or undershrubs, rarely shrubs
  • Leaves imparipinnate or digitately (1)3-5-foliolate or pinnately 3-foliolate; leaflets entire, usually narrowed at base and widest above middle; stipules usually setaceous, sometimes broad and striate
  • Flowers in racemes, axillary, opposite leaves, or terminal, sometimes on long peduncles; bracts subulate, ovate, or spatulate
  • Calyx with campanulate tube, somewhat 2-lipped; often 2 upper lobes connate and lowest the longest
  • Petals: vexillum usually with short, broad claw, sometimes with 2 callosities above claw, ± velvety-pubescent on outside; wings obliquely oblong or obovate, slightly adnate to keel, sometimes eared, clawed; keel incurved
  • Stamens monadelphous or diadelphous; anthers uniform
  • Ovary sessile, usually linear, rarely subglobose, (1 or 2)several- to many-ovuled, usually hairy; style incurved or inflexed, often linear, compressed, often bearded, with terminal, capitate stigma
  • Pod linear or rarely ovate, compressed, 2-valved, sometimes septate within
  • Seeds oblong or subreniform, sometimes with a small strophiole; funicle short; aril almost absent, small or well developed
  • x = 11 (8, 12, 13) (polyploidy, B-chromosomes)

Nomenclature:

  • Tephrosia Pers.
    • Persoon: 328 (1807) name conserved
    • Harvey: 203 (1862)
    • Forbes: 951 (1948)
    • Gillett: 111 (1958)
    • Brummitt: 219 (1968)

Distribution & Notes:

  • Global: Species over 400, mainly in warm regions, abundant in Africa and Australia
  • Southern Africa: Species ± 53, widespread

References:

  • BRUMMITT, R.K. 1968. New and little known species from the Flora Zambesiaca area. XX. Tephrosia. Boletim da Sociedade Broteriana sér 2, 41
  • FORBES, H.M.L. 1948. A revision of the South African species of the genus Tephrosia Pers. Bothalia 4
  • GILLETT, J.B. 1958. Notes on Tephrosia in Tropical Africa. Kew Bulletin 13
  • HARVEY, W.H. 1862. Leguminosae. Flora capensis 2
  • PERSOON, C.H. 1807. Synopsis plantarum 2. Cramer, Paris & Cotta, Tübingen