References

Haynes, R.R., L.B. Holm-Nielsen, & D.H. Les. 1998a. Najadaceae. Pp. 301-306. 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