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

Apocynaceae - Apocynoideae - Wrightieae - *Nerium L.

Description :

  • Shrubs or small trees 1-6 m high
  • Leaves ternate, petiole 3-10 mm long; lamina coriaceous, narrowly elliptic, 50-210×10-35 mm, acuminate or acute at apex, cuneate at base
  • Inflorescence terminal or axillary, thyrsoid, lax
  • Flowers actinomorphic, ornamental
  • Calyx free, narrowly triangular to narrowly ovate
  • Corolla showy, white, pink to wine-red, yellow or salmon; tube infundibuliform; lobes in bud overlapping to the right, obovate, rounded, entire; corona of 5 truncate epipetalous parts, 3-8-lobed
  • Stamens 5; filaments short, anthers 4-locular, narrowly triangular, fertile at sagittate base, introrse, with filiform apical appendages
  • Ovary broadly ovoid
  • Mericarps 2, follicular, narrowly oblong
  • Seeds oblong with 9-12 mm long tuft of hairs at truncate apex
  • x = 11

Nomenclature:

  • *Nerium L.
    • Linnaeus: 209 (1753)
    • Leeuwenberg: 397 (1985)

Distribution & Notes:

  • Southern Africa : *Nerium oleander L., often occurs as an escape, and is a proposed declared invader, especially in rocky and gravelly, usually dry watercourses in semi-arid regions (Henderson; ### (1995)~(Page number missing - No access to the publication))

Additional Notes:

  • A highly poisonous but popular, evergreen garden shrub cultivated for ornament and screening, has toxic, clear, sticky sap;

References:

  • HENDERSON, L. 1995. Plant invaders of southern Africa . Agricultural Research Council, Pretoria
  • LEEUWENBERG, A.J.M. 1985. Apocynaceae : Tabernaemontana , Voacanga and Wrightia . Flora zambesiaca 7,2
  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm