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

Asteraceae - Astereae - Grangea Adans.

Description :

  • Annual or perennial, erect or decumbent herbs, ± hairy, branching from base
  • Leaves alternate, sessile, with subauriculate bases, pinnatifid, oblong-obovate to obovate to spathulate in outline, hairy on both sides, lobes entire or dentate
  • Capitula disciform, ± globose, single in leaf axils or 2-6 terminal, subcorymbosely arranged, on leafless or bracteate peduncles
  • Involucre campanulate or cup-shaped; bracts in ± 3 rows, subequal, with membranous, transparent ciliate margins
  • Receptacle convex to conical, epaleate
  • Marginal florets female, fertile, in 2 or 3, rarely many rows; corolla yellow, tubular, 2-4-dentate, laxly glandular
  • Disc florets many, bisexual, fertile, as long as or longer than outer florets; corolla yellow, lower part tubular becoming campanulate upwards, with 4 or 5 triangular lobes, laxly glandular
  • Anthers ecalcarate and ecaudate, apex with triangular obtuse appendages
  • Style slightly longer than corolla, with 2 short branches; appendages triangular papillose
  • Cypselas small, obovate or elliptic, slightly compressed, with 2 (rarely 4) marginal nerves, upper part often narrowed, loosely hairy
  • Pappus of few, basally connate, scaly bristles, or a corona or rarely 0
  • x = 9 (8)

Nomenclature:

  • Grangea Adans.
    • Adanson: 121 (1763)
    • Oliver & Hiern: 304 (1877)
    • Merxmüller: 87 (1967)
    • Hilliard: 57 (1977)
    • Fayed: 450 (1979)
    • Bremer: 400 (1994)

Distribution & Notes:

  • Global : Species 10, Africa, Madagascar and Asia
  • Southern Africa : Species 2: Grangea anthemoides O.Hoffm., G. maderaspatana (L.) Poir., subtropical flats of Namibia and N KwaZulu-Natal

References:

  • ADANSON, M. 1763. Familles des Plantes 2. Vincent, Paris
  • BREMER, K. 1994. Asteraceae , cladistics & classification . Timber Press, Portland, Oregon
  • FAYED, A. 1979. Revision der Grangeinae ( Asteraceae - Astereae ). Mitteilungen der Botanischen Staatssammlung München 15
  • HILLIARD, O.M. 1977. Compositae in Natal . University of Natal Press, Pietermaritzburg
  • MERXMÜLLER, H. 1967. Asteraceae . Prodromus einer Flora von Südwestafrika 139
  • OLIVER, D & HIERN, W.P. 1877. Compositae . Flora of tropical Africa 3