Spermacoce ernstii merupakan tumbuhan dari famili Rubiaceae (suku kopi-kopian). Nama ilmiah Spermacoce ernstii pertama kali dipublikasikan oleh botanis Francis Raymond Fosberg pada tahun 1980.
POWO (2024). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; https://powo.science.kew.org/."
IPNI (2024). "International Plant Names Index. Published on the Internet http://www.ipni.org, The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries, and Australian National Herbarium"
USDA - NRCS (2024). "United States Department of Agriculture - Natural Resources Conservation Service", Plant Profile.
Penelusuran lebih jauh tentang Spermacoce ernstii: