e-Key <span id="jodit_selection_marker_1699520214106_5001682938935217" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Chamaec<span id="jodit_selection_marker_1699520214106_5900810531215053" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>rista
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Fabaceae - Caesalpinioideae - Cassieae - Chamaecrista Moench

Description:

  • Trees, shrubs, perennial or annual herbs
  • Leaves paripinnate; extrafloral nectaries often present on petioles and sometimes on axis of racemes, when present patelliform, scutiform or cupular, secretory surface plane or concave
  • Inflorescence a 1-many-flowered raceme, usually axillary; pedicels 2-bracteolate near or above middle
  • Flowers bisexual, irregular
  • Petals yellow, sometimes red-marked near claw, often highly heteromorphic, 2 abaxial ones variously oblique, vexillar one usually interior in bud, sometimes exterior on one or both sides
  • Stamens (2-)5-10, the basifixed anthers longer than their short filament, equal or unequal, but if unequal not accrescent towards abaxial side of flower, lateral sutures incurved puberulent or pilosulous, dehiscence apical by pore or short slit
  • Pod plano-compressed, very rarely winged along sutures, elastically dehiscent, valves papery, leathery or subligneous, coiling
  • Seeds either smooth or pitted
  • x = 8

Nomenclature:

  • Chamaecrista Moench
    • Moench: 272 (1794)
    • Irwin & Barneby: 28 (1976)
    • Irwin & Barneby: 106 (1981)

Distribution & Notes:

  • Global: Species ± 250, primarily neotropical
  • Southern Africa: Species 9, widespread

References:

  • IRWIN, H.S. & BARNEBY, R.C. 1976. Notes on the generic status of Chamaecrista Moench (Leguminosae: Caesalpinioideae). Brittonia 28
  • IRWIN, H.S. & BARNEBY, R.C. 1981. Cassieae. Advances in Legume Systematics pt. 1
  • MOENCH, C. 1794. Methodus plantas horti botanici et agri marburgensis, a staminum situ describendi. Nova libraria academiae, Marburg