Spermacoce ovalifolia, the broadleaf false buttonweed, is a species of plants in the Rubiaceae. It is native to Mexico, Central America, parts of the Caribbean (Cuba, Puerto Rico, Haiti, Trinidad, and the Windward Islands), and South America (Venezuela, Colombia, Ecuador, Peru, Bolivia, Brazil, Paraguay). Spermacoce ovalifolia is an annual herb about 30 cm tall. Leaves are ovate, up to 4 cm long. flowers are very small, in dense axillary clusters. References External links photo of herbarium specimen at Missouri Botanical Garden, collected in Jalisco in 1889, isotype of Spermacoce pringlei, synonym of Spermacoce ovalifolia Gardening Europe ovalifolia Flora of Mexico Flora of Central America Flora of Cuba Flora of Puerto Rico Flora of Trinidad and Tobago Flora of the Windward Islands Flora of Venezuela Flora of Colombia Flora of Ecuador Flora of Bolivia Flora of Brazil Flora of Paraguay Plants described in 1844 Flora without expected TNC conservation status