Romanoa tamnoides is a species of plant of the family Euphorbiaceae. It is the sole species in the monotypic genus Romanoa, first described in 1824. It is native to Brazil and Paraguay. Varieties Romanoa tamnoides var. sinuata (Ule) Radcl.-Sm. - Bahia Romanoa tamnoides var. tamnoides - Paraguay, SE Brazil (Minas Gerais, Goiás, Rio de Janeiro) The genus name Romanoa is also used for a fungus. References Plukenetieae Plants described in 1824 Flora of South America