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

Brassicaceae - Lepidieae - *Thlaspi L.

Description :

  • Annual or perennial herbs, usually glabrous; stems leafy
  • Leaves simple, mostly amplexicaul
  • Inflorescences simple, ebracteate racemes
  • Sepals spreading, not saccate
  • Petals clawed, white, pink or mauve
  • Stamens 6; filaments without appendages
  • Nectaries 4, semilunar, one on either side of each short filament
  • Ovary with 2-16 ovules
  • Fruit an angustiseptate, oblong to circular or obovate silicula, usually deeply emarginate; valves keeled, generally winged
  • Seeds ellipsoid; cotyledon accumbent
  • x = 7 (aneuploids, high polyploidy)

Nomenclature:

  • *Thlaspi L.
    • Linnaeus: 645 (1753)
    • Linnaeus: 292 (1754)
    • Schulz: 444 (1936)
    • Clapham: 318 (1964)
    • Marais: 97 (1970)
    • Jonsell: 27 (1982)

Distribution & Notes:

  • Global : Species 60, widespread in temperate regions of the northern hemisphere
  • Southern Africa : Species 1: * Thlaspi arvense L., introduced, recorded only in the Eastern Cape

References:

  • CLAPHAM, A.R. 1964. Cruciferae . Thlaspi . Flora europaea 1
  • JONSELL, B. 1982. Cruciferae . Flora of tropical East Africa , Cruciferae
  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm
  • LINNAEUS, C. 1754. Genera plantarum , edn 5. Laurentius Salvius, Stockholm
  • MARAIS, W. 1970. Cruciferae . Flora of southern Africa 13
  • SCHULZ, O.E. 1936. Cruciferae . Die natürlichen Pflanzenfamilien II,17b