e-Key <span id="jodit_selection_marker_1710238557367_6924573875611082" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Hete<span id="jodit_selection_marker_1710238557367_14864185337638913" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>romma
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Astereae - Heteromma Benth.

Description:

  • Perennial herbs up to 1 m tall
  • Leaves alternate, sometimes radical, simple, broadly linear or pinnatisect, sessile or petiolate, decurrent
  • Capitula discoid, in panicled corymbs, several-flowered
  • Involucre campanulate; bracts in 2 or 3 rows, inner ones obovate to broadly elliptic, usually membranous
  • Receptacle flat, honeycombed, epaleate
  • Florets bisexual; corolla yellow; tube narrowly cylindric below, becoming campanulate above, 5-lobed
  • Anthers ecalcarate and ecaudate; with lanceolate, apical appendage
  • Style branches oblong, truncate and penicillate with deltoid appendage, with conspicuous sweeping hairs
  • Cypselas elliptic to obovate in outline, somewhat oblique, slightly compressed, usually 3-ribbed, pubescent
  • Pappus in 2 rows, of many fine scabrid bristles, caducous

Nomenclature:

  • Heteromma Benth.
    • Bentham: 286 (1873)
    • Hilliard & Burtt: 364 (1973)
    • Hilliard: 100 (1977)
    • Bremer: 422 (1994)
  • Chrysocoma subgenus Heteropsis Harv.
    • Harvey: 95 (1865).
  • Pentheriella O.Hoffm. & Muschl.
    • Hoffmann & Muschler: 316 (1910)

Distribution & Notes:

  • Southern Africa: Species 3, endemic, Free State, KwaZulu-Natal, Lesotho and Eastern Cape

References:

  • BENTHAM, G. 1873. Compositae. In G. Bentham & J.D. Hooker, Genera Plantarum 2. Lovell Reeve & Co., London
  • BREMER, K. 1994. Asteraceae, cladistics & classification. Timber Press, Portland, Oregon
  • HARVEY, W.H. 1865. Compositae. Flora capensis 3
  • HILLIARD, O.M. 1977. Compositae in Natal. University of Natal Press, Pietermaritzburg
  • HILLIARD, O.M. & BURTT, B.L. 1973. Notes on some plants of southern Africa chiefly from Natal. Notes from the Royal Botanic Garden Edinburgh 32
  • HOFFMANN, K.A.O. & MUSCHLER, R. 1910. Nachtrag zu den Compositae. Annalen des Naturhistorischen Hofmuseums, Wien 24