e-Key v<span id="jodit_selection_marker_1710247645825_9440862035883038" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>3 - *Hypoch<span id="jodit_selection_marker_1710247645825_9344487144745726" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aeris
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Lactuceae - *Hypochaeris L.

Description:

  • Annual or perennial, acaulescent herbs with milky latex; with deep taproot; stems solitary or few, often branched
  • Leaves mostly radical, entire, toothed or pinnatifid
  • Capitula ligulate, solitary or several in sparingly branched, corymbose panicles
  • Involucre oblong-cylindrical or campanulate; bracts in several rows
  • Receptacle paleate; paleae linear, acuminate
  • Florets bisexual; corolla yellow or white, strap-shaped
  • Anthers with base sagittate, auricles mucronate-acuminate
  • Style branches long, obtuse, sweeping hairs short
  • Cypselas spindle-shaped, at least inner ones beaked, tuberculate, ribbed
  • Pappus of plumose bristles, in 1 or 2 rows
  • x = 4, 5 (3, 6, 7, 8, 11) (high polyploidy, B-chromosomes)

Nomenclature:

  • *Hypochaeris L.
    • Linnaeus: 810 (1753)
    • Linnaeus: 352 (1754)
    • Phillips: 852 (1951)
    • Henderson & Anderson: 378 (1966)
    • Hilliard: 599 (1977)
    • Pope: 192 (1992)
    • Bremer: 198 (1994)

Distribution & Notes:

  • Global: Species ± 50, Europe, Asia, North Africa, South America
  • Southern Africa: Species 4, not known from Namibia and Botswana

References:

  • BREMER, K. 1994. Asteraceae, cladistics & classification. Timber Press, Portland, Oregon
  • HENDERSON, M. & ANDERSON, J.G. 1966. Common weeds in South Africa. Memoirs of the Botanical Survey of South Africa No. 37
  • HILLIARD, O.M. 1977. Compositae in Natal. University of Natal Press, Pietermaritzburg
  • LINNAEUS, C. VON. 1753. Species plantarum. Laurentius Salvius, Stockholm
  • LINNAEUS, C. VON. 1754. Genera plantarum, edn 5. Laurentius Salvius, Stockholm
  • PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2. Memoirs of the Botanical Survey of South Africa No. 25
  • POPE, G.V. 1992. 97. Compositae. Flora zambesiaca 6,1

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