Classification, origins, and patterns of diversification in New Zealand Carmichaelinae (Fabaceae)

Steven J. Wagstaff, Peter B. Heenan, Michael J. Sanderson

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


Analysis of ITS sequences provides support for a clade that includes Carmichaelia, Clianthus, Montigena, and Swainsona. We provide a node-based definition and recommend that this clade be called Carmichaelinae. Results suggest that Carmichaelinae are derived from northern hemisphere Astragalinae. The clade has extensively radiated in Australia and two independent lineages have diversified in New Zealand. The New Zealand lineages differ in species richness. One lineage consists of 24 species placed in Carmichaelia and Clianthus, while the other corresponds to the monotypic genus Montigena. The pattern of relationships inferred from ITS sequences suggests that the New Zealand radiation was recent and possibly accompanied episodes of mountain-building and glaciation.

Original languageEnglish (US)
Pages (from-to)1346-1356
Number of pages11
JournalAmerican journal of botany
Issue number9
StatePublished - 1999


  • Australia
  • Carmichaelia
  • Clianthus
  • Fabaceae
  • Montigena
  • New Zealand
  • Phylogeny
  • Swainsona

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science


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