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

Asteraceae - Gnaphalieae - Oxylaena Benth. ex Anderb.

Description :

  • Shrubs
  • Leaves alternate, sessile, long, deflexed, narrowly linear, straight, mucronate, glandular-hairy, margin slightly revolute, entire
  • Capitula radiate, solitary
  • Involucral bracts cartilaginous, in a few rows; stereome undivided
  • Receptacle flat, epaleate
  • Ray florets female, in 1 row, fewer than disc florets; corolla ?white
  • Disc florets functionally male; corolla yellow, with glandular hairs, lobes erect
  • Anthers ecalcarate, shortly caudate; apical appendage ovate, concave, as wide as thecae; endothecial tissue polarised
  • Style branches obtuse with obtuse sweeping hairs, not reaching the furcation; stigmatic surface basally separated but apically converging(?)
  • Cypselas with ± 5 vascular bundles, glabrous; epidermis smooth
  • Pappus 0

Nomenclature:

  • Oxylaena Benth. ex Anderb.
    • Bentham: 9 (1876)
    • Anderberg: 53 (1991)
    • Anderberg: 325 (1994)

Distribution & Notes:

  • Southern Africa : Monotypic: Oxylaena acicularis (Benth.) Anderb., endemic, Western Cape, rare

References:

  • ANDERBERG, A.A. 1991. Taxonomy and phylogeny of the tribe Gnaphalieae ( Asteraceae ). Opera Botanica 104
  • ANDERBERG, A.A. 1994. Tribes Inuleae , Plucheeae , Gnaphalieae . In K. Bremer, Asteraceae , cladistics and classification . Timber Press, Portland, Oregon
  • BENTHAM, G. 1876. Hooker's Icones Plantarum 12