Examples of duckweed species (Lemnaceae) that could be found around the place where St. Hildegard worked, Bingen at the river Rhine, Germany. A: Spirodela polyrhizaB: Lemna minor
Appenroth, K.J.; Edelman, M.; Sree, K.S.Duckweed Species. Encyclopedia. Available online: https://encyclopedia.pub/image/97 (accessed on 17 April 2025).
Appenroth KJ, Edelman M, Sree KS. Duckweed Species. Encyclopedia. https://encyclopedia.pub/image/97. Published Aug 15, 2023. Accessed 17 April, 2025.
Appenroth, Klaus Juergen, Marvin Edelman, K Sowjanya Sree. Duckweed Species. 2023. Encyclopedia. https://encyclopedia.pub/image/97.