Trigoniaceae

The Trigoniaceae is a family of tropical shrubs or woody vines belonging to the order Geraniales. These plants are characterized by irregular, often spurred flowers and a two-celled capsular fruit. The family contains five genera and 28 species, primarily native to Central and South America, with Trigonia being the largest genus. Members of this family often have T-shaped hairs and dense whitish hairs on the lower surface of their leaves. Their flowers are described as somewhat pea-like, and their fruit frequently opens internally along the partitions. The genus Trigonia itself can refer to these shrubs or to a genus of pearly-shelled bivalve mollusks found in Australia.123