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

DICOTYLEDON - ASTERIDAE - ASTERALES - Asteraceae - Anthemideae

Compiled by P.P.J. Herman, E. Retief, M. Koekemoer and W.G. Welman

Description :

  • Annual or perennial herbs, subshrubs or shrubs, rarely spinescent, usually aromatic
  • Leaves alternate or rarely opposite or fasciculate or rosulate, generally variously dissected, pinnatisect, pinnatifid, lobed or serrate-dentate or rarely entire, rarely succulent
  • Capitula radiate, disciform or discoid, solitary, corymbose or paniculate, rarely aggregated, often pedunculate, sometimes sessile
  • Involucral bracts in 3 or more rows, rarely in 1 or 2 rows, imbricate, almost always with scarious margins and apex
  • Receptacle paleate or epaleate, rarely pilose or hirsute
  • Ray florets (in radiate capitula) female, fertile or sterile or neuter, lamina white, yellow or rarely blue-violet, pink, cream-coloured or reddish
  • Outer florets (in disciform capitula) female, in 1 or more rows, tubular or filiform, rarely without corollas
  • Disc florets bisexual or functionally male, yellow or rarely whitish or red, sometimes distinctly divided into tube and limb, sometimes more funnel-shaped, rarely somewhat irregular, basally often swollen and saccate in fruit; 5- or 4-lobed, rarely 3-lobed
  • Anthers mostly ecalcarate and ecaudate, rarely shortly caudate or calcarate; apical appendage ovate to lanceolate-oblong, flat, sometimes with resin sacs; endothecial tissue generally radial or rarely polarised
  • Style branches almost always truncate and penicillate, hairs obtuse, with stigmatic areas in 2 marginal stripes, sometimes undivided in functionally staminate florets
  • Cypselas generally terete to weakly angled or ribbed or flattened, sometimes winged, thin- or thickwalled
  • Pappus generally of rather few scarious scales, corona or auricle, often 0.

Nomenclature:

  • Anthemideae
    • Cassini: 192 (1819)
    • Bremer & Humphries: 90 (1993)
    • Bremer: 447 (1994)

Distribution & Notes:

  • Global : Genera 109, worldwide but with main concentrations in Central Asia, Mediterranean region, southern Africa, less often North America, rarely South America and Australia
  • Southern Africa : Genera 34, species 293

References:

  • BREMER, K. 1994. Asteraceae , cladistics & classification . Timber Press, Portland, Oregon
  • BREMER, K. & HUMPHRIES, C. 1993. Generic monograph of the Asteraceae - Anthemideae . Bulletin of the Natural History Museum, Botany Series 23
  • CASSINI, A.H.G. DE. 1819. In Journal de physique, de chimie, d'histoire naturelle et des artes 88