The biosystematics of Arnica fulgens and A. sororia ( Asteraceae).

S. R. Downie, K. E. Denford

Research output: Contribution to journalArticlepeer-review


Arnica fulgens and A. sororia are sympatric throughout most of their ranges in NW USA and adjacent SW Canada. These taxa were previously recognized as 2 morphologically overlapping varieties or not very well separated species. A study of their floral and vegetative morphology, using TAXMAP cluster analyses, foliar flavonoid chemistry, reproductive biology, and ecology indicates that they are distinct species. Studies of reproductive behaviour reveal them to be amphimictic and self-incompatible. -from Authors

Original languageEnglish (US)
Pages (from-to)559-570
Number of pages12
JournalCanadian Journal of Botany
Issue number3
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Plant Science


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