Stratiotes is a genus of submerged aquatic plant commonly known as water soldiers, described as a genus by Linnaeus in 1753. Several specific names have been coined within the genus, but at present only one is recognized: Stratiotes aloides, native to Europe and NW Asia.
- formerly included in genus
- Stratiotes acoroides - Enhalus acoroides
- Stratiotes alismoides - Ottelia alismoides
- Stratiotes nymphoides - Hydrocleys nymphoides
- Stratiotes quinquealatus - Ottelia alismoides
The leaves are serrate and very brittle, breaking easily when handled. Reproduction is generally by offsets, which may number 5 or more per plant. In the UK, male plants have rarely if ever been recorded, although some hermaphrodite flowers have been recorded from more southerly locations. Sexual reproduction is not known to occur. A characteristic of the genus is the habit of the plants rising to the surface at flowering time.
The plant appears to be associated with calcareous waters and there is a suggestion that changing levels of calcium carbonate on the leaves may explain the floating and submerging behaviour.
- 1885 illustration of Stratoides aloides, water soldier from Prof. Dr. Otto Wilhelm Thomas, Flora von Deutschland Österreich und der Schweiz. 1885, Gera, Germany
- Kew World Checklist of Selected Plant Families
- Linnaeus, Carl von. 1753. Species Plantarum 1: 535 in Latin
- Tropicos, Stratiotes L.
- Invading Species.com Partnership between the Ontario Ministry of Natural Resources and the Ontario Federation of Anglers and Hunters
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