e-Key <span id="jodit_selection_marker_1701779957240_9896008403947754" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Ro<span id="jodit_selection_marker_1701779957240_8460124221339336" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>rippa
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Brassicaceae - Arabideae - Rorippa Scop.

Description:

  • Annual to perennial herbs, glabrous or with simple hairs
  • Leaves entire, simple or pinnate
  • Inflorescences terminal or axillary, ebracteate racemes
  • Sepals spreading, not or hardly saccate at base
  • Petals white or yellow
  • Stamens normally 6; filaments without appendages
  • Nectaries ± surrounding lateral filament-bases, usually also extending outside median ones or lacking
  • Fruit a siliqua or a silicula; valves rounded on back, midrib inconspicuous or absent; stigma 2-lobed
  • Seeds ± in 2 rows, ellipsoid to spheroid, yellow to dark brown, wingless; cotyledons accumbent
  • x = 8 (aneuploids, polyploidy)

Nomenclature:

  • Rorippa Scop.
    • Scopoli: 520 (1760)
    • Schulz: 522 (1936)
    • Exell: 182 (1960)
    • Valentine: 283 (1964)
    • Schreiber: P48:9-6 (1966)
    • Marais: 105 (1970)
    • Jonsell: 52 (1982)
  • Nasturtium R.Br.
    • Brown: 109 (1812)
    • Sonder: 21 (1860)
    • Adamson: 422 (1950)
    • Phillips: 351 (1951)

Distribution & Notes:

  • Global: Species ± 80; fairly cosmopolitan, chiefly in temperate regions
  • Southern Africa: Species 5, widespread

References:

  • ADAMSON, R.S. 1950. Cruciferae Juss. In R.S. Adamson & T.M. Salter, Flora of the Cape Peninsula. Juta, Cape Town
  • BROWN, R. 1812. In W. Aiton, Hortus kewensis, edn 2, 4. George Nicol, London
  • EXELL, A.W. 1960. Cruciferae. Flora zambesiaca 1
  • JONSELL, B. 1982. Cruciferae. Flora of tropical East Africa, Cruciferae
  • MARAIS, W. 1970. Cruciferae. Flora of southern Africa 13
  • PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2. Memoirs of the Botanical Survey of South Africa No. 25
  • SCHREIBER, A. 1966. Brassicaceae. Prodromus einer Flora von Südwestafrika 48
  • SCHULZ, O.E. 1936. Cruciferae. Die natürlichen Pflanzenfamilien II,17b
  • SCOPOLI, J.A. 1760. Flora carniolica. Trottner, Vienna
  • SONDER, O.W. 1860. Crucifereae. Flora capensis 1
  • VALENTINE, D.H. 1964. Cruciferae. Rorippa. Flora europaea 1

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