山羊百科，林文智老師的植物、山岳、攝影紀錄

Part I

• 《中国植物志》 第69卷 (1990) >> 013页 PDF >> 梓属 Catalpa；http://www.iplant.cn/info/Catalpa?t=z
• FOC Vol. 18 Page 215；4. Catalpa Scopoli, Intr. Hist. Natur. 170. 1777.；梓属；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=105851
• Flora of Pakistan；Catalpa Scop., Introd. Hist. Nat. 170. 1777.；http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=105851

Part II

• Reveal, Bartonia 56: 17-18 1990；https://www.biodiversitylibrary.org/page/36398605#page/439/mode/1up

Reveal, James L., Charles E. Jarvis and Fred R. Barrie；On the Typification of Bignonia catalpa L. (Bignoniaceae)

Part III

1. Olsen, Richard T. and Joseph H. Kirkbride 2017 Taxonomic revision of the genus Catalpa (Bignoniaceae) Brittonia 69 (3): 387-421