plant Easy level

Stuckenia pectinata (L.) Börner

Sponsored by

Fennel Pondweed, Sago pondweed

Stuckenia pectinata (Potamogeton pectinatus) is a perennial, submersed, plant. It inhabits the fresh or brackish waters of ponds, lakes, spring-fed rivers, slow-flowing marshes, and streams across the majority of the globe. Indeed, it has a cosmopolitan distribution, except for the polar regions and Pacific islands.

This plant is very slender and branched, and it grows from a creeping rhizome. The multiple long, branched stems of this species often form masses at the water surface; they are slender and flexible, and they are usually several feet long. The stems may be green, brown, or reddish. Its leaves are very narrow and usually several inches long, with pointed tips. Stuckenia pectinata blooms from spring to fall; its flowers are on spikes, very tiny and greenish.

Native to: Afghanistan, Alabama, Alaska, Albania, Alberta, Aleutian Is., Algeria, Altay, Amur, Angola, Arizona, Arkansas, Assam, Austria, Baleares, Baltic States, Bangladesh, Belarus, Belgium, Belize, Bolivia, Botswana, British Columbia, Bulgaria, Burundi, Buryatiya, California, Cape Provinces, Caprivi Strip, Central American Pac, Central European Rus, Chile Central, China North-Central, China South-Central, China Southeast, Chita, Colombia, Colorado, Connecticut, Corse, Cuba, Cyprus, Czechoslovakia, Denmark, East European Russia, Ecuador, Egypt, El Salvador, Eritrea, Ethiopia, Finland, Florida, France, Free State, Galápagos, Germany, Great Britain, Greece, Guatemala, Gulf States, Hainan, Haiti, Hungary, Idaho, Illinois, India, Indiana, Inner Mongolia, Iowa, Iran, Iraq, Ireland, Irkutsk, Italy, Japan, Kamchatka, Kansas, Kazakhstan, Kentucky, Kenya, Kirgizstan, Korea, Krasnoyarsk, Kriti, Krym, Kuril Is., KwaZulu-Natal, Lebanon-Syria, Lesser Sunda Is., Libya, Louisiana, Madagascar, Magadan, Maine, Malawi, Manchuria, Manitoba, Maryland, Massachusetts, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Michigan, Minnesota, Missouri, Mongolia, Montana, Morocco, Mozambique, Myanmar, Namibia, Nansei-shoto, Nebraska, Nepal, Netherlands, Nevada, New Brunswick, New Caledonia, New Hampshire, New Jersey, New Mexico, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, North Caucasus, North Dakota, North European Russi, Northern Provinces, Northwest European R, Northwest Territorie, Norway, Nova Scotia, Ohio, Oklahoma, Oman, Ontario, Oregon, Pakistan, Palestine, Panamá, Pennsylvania, Peru, Philippines, Poland, Portugal, Primorye, Prince Edward I., Qinghai, Québec, Rhode I., Romania, Rwanda, Réunion, Sakhalin, Sardegna, Saskatchewan, Saudi Arabia, Sicilia, Sinai, Socotra, Solomon Is., South Dakota, South European Russi, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Sweden, Switzerland, Tadzhikistan, Taiwan, Tanzania, Tennessee, Texas, Tibet, Transcaucasus, Tunisia, Turkey, Turkey-in-Europe, Turkmenistan, Tuva, Uganda, Ukraine, Utah, Uzbekistan, Venezuela, Vermont, Virginia, Washington, West Himalaya, West Siberia, West Virginia, Wisconsin, Wyoming, Xinjiang, Yakutskiya, Yemen, Yugoslavia, Yukon, Zambia, Zaïre, Zimbabwe

Introduced into: Hawaii

Submitted by
Natasha Khardina
18.0964661, 74.2133789
Geographical region
Southern Asia
Drainage Basin
Krishna River
River catchment
Bhima river (also known as Chandrabhaga)
Water body type
Water body name
Water body part
Water body course
Middle course
Water body: tributary of
Tributary name
Bhima (also known as Chandrabhaga)
Type locality
Conservation status/IUCN Red List
Not Evaluated (NE)
Listed in CITES

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
Concentration of sediments
Water temperature
17.8 °C
Water flow/curent

Chemical parameters

Dissolved Oxygen


Plant form
Plant type
Plant size
10-100 cm
Plant growth rate
Plant light demand
Aquarium equipment

Stuckenia pectinata is best given a loam based medium in full sun. Plants are able to tolerate up to 3 months in a year when the water is absent.

Plant care

Stuckenia pectinata is an aquatic herbaceous plant with stems usually up to 100cm long. This plant lives generally completely submersed, except for the reproductive spike that peaks above the water. It is nearly unbranched at the base, becoming freely branched towards the top.

Stored seed is likely to have a short viability. Prick out the seedlings when they are large enough to handle and increase the depth of water around the pot until the plants are covered by a few centimetres of water. Grow the plants on in a sunny position increasing the depth of water as the plants grow larger. Plant them out into their permanent positions when large enough.

Water care

The plant can grow in nearly all bottom substrates and can tolerate high salinity, pH, and alkaline water.