Arcoa is a genus of flowering plants in the family Fabaceae. It belongs to the subfamily Caesalpinioideae. Arcoa is monotypic, with the single species Arcoa gonavensis,Arcoa Urb. Plants of the World Online. Retrieved 16 May 2023. a shrub or tree endemic to Hispaniola.Arcoa gonavensis Urb. Plants of the World Online. Retrieved 16 May 2023.
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