e-Key v3 - Grewia
SANBI Flora Keys Logo
Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Tiliaceae - Grewia L.

Description :

  • Shrubs or smallish trees
  • Leaves serrate, very rarely entire, 3-7-nerved at base; stipules lateral
  • Flowers in terminal or axillary panicles or in leaf-opposed or axillary umbel-like cymes
  • Sepals 5, linear-oblong or linear-spathulate, stellately hairy outside, coloured like petals within
  • Petals 5, shorter than sepals, yellow, pink, mauve, purplish or white, mostly with a nectariferous claw at base
  • Stamens indefinite, free, usually raised on a torus or androgynophore which is short and glabrous or produced above into a pubescent extension
  • Ovary 2-4-locular, entire or 2-4-lobed, with 2-many axile ovules in each locule; style longer than ovary with subulate or flattened lobes or almost entire
  • Fruit a 1-4-lobed drupe with 1-4 pyrenes; mesocarp somewhat fleshy or fibrous; endocarp hard and woody
  • x = 9 (polyploidy, B-chromosomes)

Nomenclature:

  • Grewia L.
    • Linnaeus: 964 (1753)
    • Linnaeus: 412 (1754)
    • Candolle: 508 (1824)
    • Harvey: 224 (1860)
    • Wild: 1 (1984)

Distribution & Notes:

  • Global : Species > 400, widely distributed in Africa, Asia and Australia
  • Southern Africa : Species 27, in all countries and provinces

References:

  • CANDOLLE, A.P. DE. 1824. Tiliaceae . Prodromus . Treuttel & Würtz, Paris
  • HARVEY, W.H. 1860. Tiliaceae , Juss. Flora capensis 1
  • LINNAEUS, C. 1753. Species plantarum . Laurentius Salvius, Stockholm
  • LINNAEUS, C. 1754. Genera plantarum . Laurentius Salvius, Stockholm
  • WILD, H. 1984. Tiliaceae . Flora of southern Africa 21,1