e-Key <span id="jodit_selection_marker_1699864879119_7340821274561895" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Indiga<span id="jodit_selection_marker_1699864879119_3206673746844071" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>strum
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Fabaceae - Papilionoideae - Indigofereae - Indigastrum Jaub. & Spach

Description:

  • Annual or perennial herbs, covered with biramous hairs
  • Leaves 1-17-foliolate; leaflets opposite or alternate, entire; stipules adnate to base of petiole, subulate or falcate-lanceolate
  • Flowers pink, in axillary, many-flowered racemes, dense initially, becoming lax later; bracts caducous
  • Calyx usually with shallowly campanulate tube; lobes equal or longer than the tube
  • Petals: vexillum narrow at base, tapering to the claw, glabrous; keel with lateral pouches, apex prolonged rostrate
  • Stamens diadelphous, all fertile; vexillary stamen free; anthers glabrous, hyaline scales at base reduced or 0
  • Ovary usually sessile; stigma oblique or capitate
  • Pod reflexed, 4-20-seeded, terete or laterally compressed, linear, straight or curved
  • Seeds quadrate

Nomenclature:

  • Indigastrum Jaub. & Spach
    • Jaubert & Spach: 101, t. 492 (1857)
    • Schrire: 167 (1992)
    • Schrire: 161 (1995)

Distribution & Notes:

  • Global: Species ± 9, mostly south tropical Africa and one pantropical
  • Southern Africa: Species 8, widespread

References:

  • JAUBERT, H.-F. & SPACH, E. 1857. Illustrationes plantarum orientalium 5. Roret, Paris
  • SCHRIRE, B.D. 1992. New combinations and resurrected names in Microcharis and Indigastrum (Fabaceae-Papilionoideae). Bothalia 22
  • SCHRIRE, B.D. 1995. Evolution in the tribe Indigoferae (Leguminosae-Papilionoideae). Advances in Legume Systematics 7