A genus of about 60 species, hemiparasitic annual (A. linifolia perennial) herbs, of tropical and warm temperate regions of America.
[Key adapted from FNA]
Ref: Canne (1979); Canne-Hilliker & Hays (2019) In Flora of North America Editorial Committee (2019); Hays (1998a); Hays (1998b); Hays (2010); Pennell (1935); Sorrie (2017b) In Weakley et al. (2017). Show full citations.