แหล่งที่มา WikiPedia: โบตั๋น_(พรรณไม้) http://www.peony.ca/ http://www.china.org.cn/english/environment/64698.... http://www.biocrawler.com/Pictures/?d=Botany/Flowe... http://onlinelibrary.wiley.com/doi/10.1046/j.1095-... http://www.baumpfingstrosen.de/en http://www.paeon.de/ http://www.paeonia.de/ http://www.ars-grin.gov/~sbmljw/cgi-bin/splist.pl?... http://www.valentine.gr/mythology4.htm http://www.coloridellamurgia.it/gall/peonia/index....
