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Species
Potamogeton perfoliatus ssp. bupleuroides (Fern.) Hult
IUCN
NCBI
EOL Text
Growing in lakes, ponds, rivers, channels.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Wen, Jun, Wen, Jun, Plants of Tibet |
Source | http://plantsoftibet.lifedesks.org/pages/39213 |
Fruitlet polymorphism has been noticed in this species (Aalto, l.c.). Plants are generally used in manuring and the rootstocks are used as food for animals.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200024699 |
Plants perennial, submerged in freshwater. Rhizome unspotted, terete, slender. Stems densely branched at upper part, terete, 0.5-2.5 mm in diameter. Stipules axillary, convolute, 3-22 mm, membranous, evanescent. Leaves sessile; leaf blade lanceolate to broadly ovate, orbicular-ovate, or ovate-oblong to lanceolate, 3-5-veined, with narrow rows of lacunae bordering midvein, base cordate and amplexicaul, margin minutely denticulate, apex obtuse or rounded. Spikes usually contiguous and cylindrical, with 4-7 whorls of opposite flowers; peduncles 2-11 cm. Carpels 4. Fruit obovoid, 2.5-4.5 mm; abaxial keels 3, with a slightly sharp midvein and two indistinct lateral keels, with a short beak at tip.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Wen, Jun, Wen, Jun, Plants of Tibet |
Source | http://plantsoftibet.lifedesks.org/pages/39213 |
Flowering summer--fall.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200024699 |
P. perfoliatus has an almost cosmopolitan distribution with a few curiously isolated occurrences, such as Sumatra and Guatemala. It is found throughout most of Europe, including the Mediterranean north to northern Scandinavia and Iceland, east through Siberia to Japan and the Korean peninsula, as well as eastern, northern and central North America and Greenland. It also occurs in North and Central Africa, the Middle East and Caucasus, Mongolia, throughout much of China, Mongolia and the Himalayas and Australia.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | © International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/164189 |
Flowering and fruiting from June to August.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Wen, Jun, Wen, Jun, Plants of Tibet |
Source | http://plantsoftibet.lifedesks.org/pages/39213 |
Canada
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
United States
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
Fl. Per.: November-March.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200024699 |
Nile region and Sinai.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Bibliotheca Alexandrina, BA Cultnat, Bibliotheca Alexandrina - EOL Ar |
Source | http://lifedesk.bibalex.org/ba/pages/4011 |
Sequences of the chloroplast trnT-trnF region were analyzed for the species of the genus Potamogeton distributed in China to reconstruct phylogenetic relationships (Zhang et al., 2008). The phylogenetic analyses showed that the genus Potamogeton could be divided into two clades, supporting the conventional treatment that the genus Potamogeton contains the submerged linear-leaved group and the submerged broad-leaved group. The first clade represented the subgenus Potamogeton. The second clade, which represented the subgenus Coleogeton, displayed a close phylogenetic relationship with the subgenus Potamogeton and occupied a unique position within the genus Potamogeton.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Wen, Jun, Wen, Jun, Plants of Tibet |
Source | http://plantsoftibet.lifedesks.org/pages/39213 |