Germplasm Resources Information Network: Ailanthus Plant Conservation Alliance's Alien Plant Working Group: Least Wanted
Trung tâm Nghiên cứu Đa dạng sinh học Thực vật (Centre for Plant Biodiversity Research), Chính phủ Úc.  Germplasm Resources Information Network: Ailanthus Plant Conservation Alliance's Alien Plant Working Group: Least Wanted