Flora of the Southeastern United States
2022 Edition

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PRIMULACEAE

Steironema Rafinesque. Loosestrife.

Key to Steironema

A genus of about 8 species, perennial herbs, of North America. Steironema has occasionally been accorded genus rank in eastern North American floras (notably Small 1933, Gleason & Cronquist 1952, and Mohlenbrock 2014), but has more usually been included in Lysimachia. The morphologic differences from Lysimachia are more profound than the superficially similar flowers suggest. Yan et al. (2018) shows Steironema and Trientalis in a clade basal to Centunculus, Anagallis, and Lysimachia (in a narrower sense). Hab: A genus of X species, perennial herbs, of temperate and boreal North America.

Ref: Cholewa (2009f) In Flora of North America Editorial Committee (2009); Estes, Shaw, & Mausert-Mooney (2015); Yan et al. (2018). Show full citations.

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