| Deildartunguhver | |
|---|---|
 | |
 | |
| Location | Reykholtsdalur, Iceland |
| Coordinates | 64°40′32″N 21°30′45″W / 64.6754473°N 21.5126228°W |
| Spring source | superheated groundwater |
| Type | geothermal |
| Temperature | 97 °C |
Deildartunguhver (Icelandic pronunciation: [ˈteiltarˌtʰuŋkʏˌkʰvɛːr̥]) is a hot spring in Reykholtsdalur, Iceland. It is characterized by a very high flow rate for a hot spring (180 liters/second) and water emerges at 97 °C (207 °F). It is the highest-flow hot spring in Europe.[a]
Some of the water is used for heating; it is piped 34 kilometres (21 mi) away to Borgarnes and 64 kilometres (40 mi) away to Akranes.
A fern called Struthiopteris fallax,[1][2] grows in Deildartunguhver. This fern is the only endemic fern in Iceland, and it does not grow anywhere else in the world.
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).
- ^ Molino, Sonia; Gabriel y Galán, Jose M.; Wasowicz, Pawel; de la Fuente, Pablo; Sessa, Emily B. (2019-02-16). "The Struthiopteris spicant (Blechnaceae, Polypodiopsida) complex in Western Europe, with proposals for taxonomic and nomenclatural changes". Plant Systematics and Evolution. 305 (4): 255–268. doi:10.1007/s00606-019-1565-0. ISSN 2199-6881.
- ^ Perez, Ruben Pino; Galan, Jose Maria Gabriel Y.; Wasowicz, Pawel (2017-03-31). "New combinations in Struthiopteris spicant for the European flora". Phytotaxa. 302 (2): 198–200. doi:10.11646/phytotaxa.302.2.11. ISSN 1179-3163.