討論:Ulmus
山羊百科,林文智老師的植物、山岳、攝影紀錄
- FOC Vol. 5 Page 1;1. Ulmus Linnaeus, Sp. Pl. 1: 225. 1753.;榆属;http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=134116
- Ulmus;Rehder, Cycl. Amer. Hort. 4: 1879 1902.;https://www.biodiversitylibrary.org/page/22466553#page/463/mode/1up