Arrow-leaved pond rose
| Arrow-leaved pond rose | ||||||||||||
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Arrow-leaved pond rose ( Nuphar sagittifolia ) |
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| Nuphar sagittifolia | ||||||||||||
| ( Walter ) Pursh |
The arrow-leaved pond rose ( Nuphar sagittifolia (Walter) Pursh , syn .: Nuphar lutea subsp. Sagittifolia (Walter) EO Beal , Nymphaea sagittifolia Walter ) is a species of the water lily family (Nymphaeaceae).
features
The arrow-leaved pond rose is a perennial aquatic plant with a rhizome that is 2 to 2.5 cm in diameter. The floating leaf blade is broadly linear to almost lanceolate, is three to five times as long as it is wide and measures 15 to 30 (rarely up to 50) × 5 to 10 (rarely up to 11.5) centimeters.
The hermaphrodite, radial symmetry flowers are 2 to 3 cm in diameter. There are six sepals . There are many spirally arranged petals . The scar disc has ten to 14 rays. The flowering period extends from June to August.
The green, egg-shaped fruit is 3 to 3.5 cm long and 2 to 3 cm in diameter; it is smooth at the base and strongly ribbed towards the top. The seeds are 4 to 5 mm in size.
Occurrence
The arrow-leaved pond rose occurs in warm temperate eastern North America in rivers, ponds and lakes near the coast at altitudes of 0 to 50 meters. Their original occurrences are in South Carolina , in eastern North Carolina and in southeastern Virginia .
use
The arrow-leaved pond rose is used as an aquarium plant and rarely as an ornamental plant in garden ponds.
swell
literature
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants. Spectrum Academic Publishing House, Berlin / Heidelberg 2008, ISBN 978-3-8274-0918-8 .
Individual evidence
- ^ Nuphar in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 30, 2018.
- ^ Hans-Georg Kramer: Plant aquaristics á la Kramer. Tetra-Verlag, Berlin-Velten 2009, ISBN 978-3-89745-190-2 , p. 204 ( Nuphar sagittifolia : "Pfeilblättrige Seerose", "Spatterdock").