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ITS sequence evidence for the disjunct distribution between Virginia and Missouri of the narrow endemic Helenium virginicum (Asteraceae)

, : ITS sequence evidence for the disjunct distribution between Virginia and Missouri of the narrow endemic Helenium virginicum (Asteraceae). Journal of the Torrey Botanical Society 127(4): 316-323

Previous studies have revealed that the Federal-Threatened species, Helenium virginicum, is endemic to 30 sinkhole ponds in Virginia; that it is distinct from three other lineages of the H. autumnale species complex; and that a population in Missouri is scarcely different from H. virginicum in morphology and ecology. We evaluated the phylogeography of 12 populations of the H. autumnale species complex by comparing the ITS-1 and ITS-2 regions of the nrDNA with three outgroups.


DOI: 10.2307/3088650

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