e-Key <span id="jodit_selection_marker_1709037716176_6269402645407185" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>v3 - Dym<span id="jodit_selection_marker_1709037716176_00710939810487754" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>ondia
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

Asteraceae - Arctoteae - Dymondia Compton

Description:

  • Perennial herbs with shallow rhizomes producing short, matted, leafy branchlets
  • Leaves alternate, spreading, linear-oblanceolate, entire or sinuate-dentate, glabrous on upper surface and whitish woolly on lower
  • Capitula radiate, solitary, sessile, subterminal
  • Involucre campanulate; bracts in several rows, woolly on back of tip
  • Receptacle slightly convex, producing white hairs and paleae round base of cypselas
  • Ray florets strap-shaped, female, fertile; corolla yellow; style short, with ovate-strap-shaped branches
  • Disc florets bisexual; corolla yellow, tubular, expanded above
  • Style swollen above, bifid, minutely hairy on swollen portion
  • Cypselas glabrous. Pappus of 2 rings of short, ovate-acuminate, laciniate, hyaline scales

Nomenclature:

  • Dymondia Compton
    • Compton: 110 (1953)
    • Bremer: 260 (1994)

Distribution & Notes:

  • Southern Africa: Monotypic: Dymondia margaretae Compton is endemic to the Bredasdorp District (Western Cape)

References:

  • BREMER, K. 1994. Asteraceae, cladistics & classification. Timber Press, Portland, Oregon
  • COMPTON, R.H. 1953. Plantae novae africanae. Journal of South African Botany 19