Perideridia Reichenbach.
A genus of about 14 species, perennial herbs, mainly of c. and w. North America (Plunkett 2018a).
Ref: Mathias & Constance (1945); Plunkett et al. (2018a) In Kadereit & Bittrich (2018); Sun & Downie in FNA (in prep.). Show full citations.
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