A genus of ca. 65 or more species, annual and perennial herbs, widely distributed in the Northern Hemisphere, with 2 species in South America, as well. See Schilling et al. (2022) for discussion of generic boundaries in Sabulina and related genera.
Ref: Bittrich (1993) In Kubitzki, Rohwer, & Bittrich (1993); Brock (2023) In Weakley et al. (2023, in press); Dillenberger & Kadereit (2014); Dillenberger & Rabeler (2018); Maguire (1951); Rabeler & Reznicek (2016); Rabeler, Hartman, & Utech (2005) In Flora of North America Editorial Committee (2005); Schilling et al. (2022). Show full citations.