討論:Spermacoce
山羊百科，林文智老師的植物、山岳、攝影紀錄
- Flora of Thailand - Rubiaceae: SPERMACOCE；https://homepage.univie.ac.at/christian.puff/_FTH-RUB/FTH-RUB-Spermacoce_compl_WEB.htm
- Spermacoce laevis Lam. - Sumatra Database http://134.76.19.22/sumatra/taxa/Rubiaceae/Spermacoce%20laevis
- Ward, Daniel B. 2011 Keys to the flora of Florida - 29, Spermacoce (Rubiaceae) Phytologia 93(3):275-282
