Beaked Tasselweed: Ruppia maritima
- Photographs and description of this waterweed found in brackish waters.
- http://www.marlin.ac.uk/species/Ruppiamaritima.htm

Ruppia cirrhosa
- Several photographs of the Spiral Tasselweed growing in brackish water
- http://www.plant-identification.co.uk/skye/ruppiaceae/ruppia-cirrhosa.htm

Ruppia maritima
- Several photographs of the Beaked Tasselweed, and its identifying features.
- http://www.plant-identification.co.uk/skye/ruppiaceae/ruppia-maritima.htm