ISSN 0002-9122. doi:10.3732/ajb.91.10.1582 (英语). Christenhusz, Maarten J.M.; Byng, JamesW. The number of known plants species in the world and its annual increase
PMC 3936591 . PMID 24532607. doi:10.1093/aob/mct299. Christenhusz, Maarten JM & Byng, J. W. The number of known plants species in the world and its annual increase
「莧」,拼音:xiàn,注音:ㄒ一ㄢˋ,中古擬音:ghrenh 维基共享资源上的相关多媒体资源:莧科 Christenhusz, Maarten J.M.; Byng, JamesW. The number of known plants species in the world and its annual increase