Potamogeton natans Linnaeus 1753
- 1. * Department of Biology, Faculty of Science, University of Isfahan, P. O. Box 73441 - 81746, Isfahan, Iran
- 2. Forests and Rangelands Research Department, Khuzestan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran
- 3. Department of Ecology, BTU Cottbus-Senftenberg, Cottbus, Germany
Description
Perennial, rhizome robust, wintergreen with phyllodial shoots, stem robust, terete, dark-spotted at base. Leaves dimorphic; submersed leaves phyllodial, 100–600 mm long, 0.5–3.5 mm wide, acute at apex, straight at base, 1–3- veined; floating leaves petiolate, oblong-lanceolate to ovate, 50–80 mm long, 50–100 mm wide, acute or obtuse at apex, rounded or subcordate at base, 20-veined, petiole 40–100 mm long, with a flexible discolored joint and a distinct angle at the top; stipules not fused, 5–8 cm long, membranous, persistent. Spike 25–35 mm long, peduncle 70–85 mm long, as thick as stem. Tepals 1–2 mm long, anthers 1 mm long. Carpels 4, fruits 3–4 mm long, indistinctly keeled. Stele of proto type, endodermis of U-type, strong interlacunar bundles present, subepidermal bundles present.
Northern Hemisphere.
Distribution in Iran: —North, West.
Flowering time: —From spring to summer.
Specimen examined:— IRAN. Golestan: Northwest of national park of Golestan, 1349 m, 20August 1999, Akhani 17050 (HUT!); Lorestan: Gahar lake, 2350 m, 8 Sep 2010, Dinarvand 20211 (Herbarium of the Research Center of Agriculture & Natural Resources of Khuzestan!); East Azerbaijan: Tikmeh dash, 1900 m, 12 Sep 2013, Bagheri 20210 (HUI!).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- HUI , HUT
- Event date
- 1999-08-20 , 2010-09-08 , 2013-09-12
- Family
- Potamogetonaceae
- Genus
- Potamogeton
- Kingdom
- Plantae
- Order
- Alismatales
- Phylum
- Tracheophyta
- Scientific name authorship
- Linnaeus
- Species
- natans
- Taxon rank
- species
- Verbatim event date
- 1999-08-20 , 2010-09-08 , 2013-09-12
- Taxonomic concept label
- Potamogeton natans Linnaeus, 1753 sec. Abbasi, Afsharzadeh, Dinarvand & Wiegleb, 2017
References
- Linnaeus, C. (1753) Species plantarum, exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol. 1. Laurentii Salvii, Holmiae. 560 pp. https: // doi. org / 10.5962 / bhl. title. 669