Xiong, Xian-Hua, Chao Liu, Yu-Qing Pu, and Mei Liu. 2025. “Rubus Inopertus var. echinocalyx, R. Pentagonus var. eglandulosus and Spiraea japonica var. pinnatifida, Three Synonyms of Rosaceae”. Phytotaxa 697 (2). Auckland, New Zealand:206-12. https://doi.org/10.11646/phytotaxa.697.2.6.