山羊百科，林文智老師的植物、山岳、攝影紀錄

Part I

• 高橋弘；日本の野生植物 1: 158 2021；大橋広好，門田裕一，邑田仁，米倉浩司，木原浩 2021 日本の野生植物 (改訂新版) (1) ソテツ科～コミカンソウ科 平凡社 ISBN 978-4-582-53538-9

• Loes., Repert. Spec. Nov. Regni Veg. (Fedde) 24: 61-72 1927；https://bibdigital.rjb.csic.es/viewer/14710/?offset=#page=69&viewer=picture&o=bookmark&n=0&q=

Loesener otto；Ubersicht uber die arten der Gattung Veratrum

• Utech, Ann. Carnegie Mus. 49: 153-160 1980；https://www.biodiversitylibrary.org/page/52334363#page/183/mode/1up

Utech, Frederick H.；Somatic karyotype analysis of Helonias bullata L. (Liliaceae), with a comparison to the Asian Heloniopsis orientalis (Thunb.) C. Tanaka

Part II

Part III

1. Tanaka, Noriyuki 1998 Phylogenetic and Taxonomic Studies on Helonias, Ypsilandra and Heloniopsis III. Taxonomic Revision J. Jpn. Bot. 73: 102-115