e-Key <span id="jodit_selection_marker_1706790026455_8709379910318702" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Aspa<span id="jodit_selection_marker_1706790026455_009909971297115572" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ragus
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asparagaceae - Asparagus L.

Description:

  • Suffrutices or scramblers with perennial or annual stems from a compact woody base
  • Rhizome sympodial, often covered by persistent erect cataphylls; roots many, fibrous or often tuberous
  • Leaves much reduced, bract-like, with a spinous or soft spur
  • Cladodes (phylloclades) solitary or fascicled, persistent or deciduous, green, terete or angled to flat, linear to ovate, apex mucronate, in some species forming a basal disc
  • Spines usually present and in some species cauline or foliar in origin
  • Flowers bisexual, regular, hypogynous, inconspicuous, solitary, fascicled or racemose; peduncles or pedicels terete or grooved or reduced to a disc or none, articulated once or twice; bracts minute or larger and concave
  • Tepals 3 + 3, similar, free and spreading or fused basally
  • Stamens 3 + 3; filaments free, arising from base of tepals; anthers bilocular, versatile, introrse, dorsifixed
  • Ovary superior, 3-locular with 2-12 axile ovules per locule; style usually short; stigma capitate, 3-lobed or with 3 branches
  • Fruit usually a globose or ovoid berry, sometimes a nutlet, tepals often persisting below
  • Seeds 1-several, globose, black
  • x = 10

Nomenclature:

  • Asparagus L.
    • Linnaeus: 313 (1753)
    • Baker: 256 (1896)
    • Jessop: 31 (1966)
    • Merxmüller: 25 (1970)
    • Malcomber & Sebsebe: 63 (1993)
    • Fellingham & Meyer: 205 (1995)
  • Myrsiphyllum Willd.
    • Willdenow: 25 (1808)
    • Obermeyer: 86 (1984)
    • Obermeyer & Immelman: 71 (1992).
  • Protasparagus Oberm.
    • Obermeyer: 243 (1983)
    • Obermeyer & Immelman: 11 (1992)

Distribution & Notes:

  • Southern Africa: Species 81, widespread in all countries and provinces

References:

  • BAKER, J.G. 1896. Asparagus. Flora capensis 6
  • FELLINGHAM, A.C. & MEYER, N.L. 1995. New combinations and a complete list of Asparagus species in southern Africa (Asparagaceae). Bothalia 25
  • JESSOP, J. 1966. The genus Asparagus in southern Africa. Bothalia 9
  • LINNAEUS, C. 1753. Species plantarum. Laurentius Salvius, Stockholm
  • MALCOMBER, S.T. & SEBSEBE, D. 1993. The status of Protasparagus and Myrsiphyllum in the Asparagaceae. Kew Bulletin 48
  • MERXMÜLLER, H. 1970. Asparagus. Prodromus einer Flora von Südwestafrika 147
  • OBERMEYER, A.A. 1983. Protasparagus Oberm., nom. nov.: new combinations. South African Journal of Botany 2
  • OBERMEYER, A.A. 1984. Revision of the genus Myrsiphyllum Willd. Bothalia 15
  • OBERMEYER, A.A. & IMMELMAN, K.L. 1992. Asparagaceae. Flora of southern Africa 5,3
  • WILLDENOW, C.L. 1808. Myrsiphyllum. Gesellschaft naturforschender Freunde zu Berlin Magazin 2