Taxonomic revision of the Packera crocata/dimorphophylla (Asteraceae: Senecioneae) complex in the southern Rocky Mountains (U.S.A.)
DOI:
https://doi.org/10.17348/jbrit.v19.i2.1399Abstract
In the Southern Rocky Mountains, Packera crocata and P. dimorphophylla form a complex of intergrading forms leading to difficulty in distinguishing taxa. Here we review the morphological variation in the context of regional phylogenetic data from two independent datasets to recircumscribe the taxa. We show the complex to consist of three taxa, P. crocata, P. dimorphophylla var. dimorphophylla, and P. intermedia, a new combination for a little-recognized taxon previously treated as a variety of P. dimorphophylla.
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