Ammannia Linnaeus. Toothcup.
A genus of about 80 species, herbs, cosmopolitan. The circumscription of the genus here includes Nesaea and Hionanthera, following Graham, Diazgranados, & Barber (2011) and Graham (2007).
Ref: Graham (1975); Graham (1985); Graham (2021b) In Flora of North America Editorial Committee (2021); Graham In Kubitzki, Bayer, & Stevens (2007); Graham, Diazgranados, & Barber (2011). Show full citations.
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