Potamogeton wrightiiMorong

WFO wfo-0000770048 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 7 observations

This species has been photographed under an open licence only 7 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Potamogeton wrightii, photographed by chiuluan
fig. a chiuluan, CC BY 4.0 / 2022-02-08 / obs. 178685383
Potamogeton wrightii, photographed by chiuluan
fig. b chiuluan, CC BY 4.0 / obs. 111784150
Potamogeton wrightii, photographed by chiuluan
fig. c chiuluan, CC BY 4.0 / obs. 39187996
Potamogeton wrightii, photographed by 葉子
fig. d 葉子, CC0 1.0 / obs. 38494446
Potamogeton wrightii, photographed by Zinogre
fig. e Zinogre, CC BY-SA 4.0 / obs. 110063469
Potamogeton wrightii, photographed by chiuluan
fig. f chiuluan, CC BY 4.0 / obs. 178686026
Potamogeton wrightii, photographed by chiuluan
fig. g chiuluan, CC BY 4.0 / obs. 155338482
Potamogeton wrightii, photographed by chiuluan
fig. h chiuluan, CC BY 4.0 / obs. 76086970

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 30 botanical countries

Regions where Potamogeton wrightii is native: China North-Central, China South-Central, China Southeast, Inner Mongolia, Japan, Kazakhstan, Korea, Manchuria, Nansei-shoto, Qinghai, Taiwan, Xinjiang, Bangladesh, Bismarck Archipelago, Borneo, India, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, New Guinea, Pakistan, Philippines, Sulawesi, Sumatera, Thailand, Vietnam, West Himalaya, Marianas China North-CentralChina South-CentralChina SoutheastInner MongoliaJapanKazakhstanManchuriaQinghaiTaiwanXinjiangBangladeshBismarck ArchipelagoBorneoIndiaLaosLesser Sunda Is.MalayaMalukuMyanmarNew GuineaPakistanPhilippinesSulawesiSumateraThailandVietnamWest Himalaya KoreaNansei-shotoMarianas
Native distribution of Potamogeton wrightii, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Bangladesh BAN ASIA-TROPICAL
Bismarck Archipelago BIS
Borneo BOR
India IND
Laos LAO
Lesser Sunda Is. LSI
Malaya MLY
Maluku MOL
Myanmar MYA
New Guinea NWG
Pakistan PAK
Philippines PHI
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
West Himalaya WHM
China North-Central CHN ASIA-TEMPERATE
China South-Central CHC
China Southeast CHS
Inner Mongolia CHI
Japan JAP
Kazakhstan KAZ
Korea KOR
Manchuria CHM
Nansei-shoto NNS
Qinghai CHQ
Taiwan TAI
Xinjiang CHX
Marianas MRN PACIFIC

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 166 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -8.6 °C 13.4 °C 15.4 °C
Warmest month, mean daily high 26.4 °C 30.1 °C 31.9 °C
Annual rainfall 671 mm 1,953 mm 3,001 mm
Rainfall in the driest quarter 29 mm 93 mm 404 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 166 research-grade observations of Potamogeton wrightii that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 8 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Potamogeton hindostanicus Hagstr.
  • Potamogeton japonicus Franch. & Sav.
  • Potamogeton japonicus A.Benn.
  • Potamogeton jeholensis Kitag.
  • Potamogeton malaianus var. latifolius Nakai ex Mori
  • Potamogeton miyakezimensis Honda
  • Potamogeton mucronatus C.Presl
  • Potamogeton tretocarpus Maxim. ex A.Benn.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.