BotryarrhenaBotryarrhena is a genus of flowering plants in the family Rubiaceae. It was described by Adolpho Ducke in 1932. It only holds two species, occurring in Brazil, Colombia, Peru and Venezuela.SpeciesBotryarrhena pendula Ducke - Venezuela, Colombia, BrazilBotryarrhena venezuelensis Steyerm. - Venezuela, Perú