References
For Butomus
Anderson, L.C., C.D. Zeis, and S.F. Alam. 1974. Phytogeography and possible origins of Butomus in North America. Bull. Torrey. Bot. Club 101: 292-296. Google Scholar
Cook, C.D.K. 1998a. Butomaceae. Pp. 100-102. In Kubitzki, K., ed. 1998b. The families and genera of vascular plants. IV. Flowering plants – Monocotyledons – Alismatanae and Commelinanae (except Gramineae). Springer, Berlin. 511 pp. Google Scholar
Crow, G.E., and C.B. Hellquist. 2023. Aquatic and wetland plants of northeastern United States, second edition. Univ. of Wisc. Press, Madison, WI, USA. Google Scholar
Gaskin, J.F., J. Andreas, B.J. Grewell, P. Haefliger, and N.E. Harms. 2021. Diversity and origins of Butomus umbellatus (flowering rush) invasion in North America. Aquatic Botany 173: 103400. Google Scholar
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