Stuckenia pectinata (L.) Börner

This species is accepted, and its native range is Cosmopolitan. It is used as animal food and a medicine and for food.

[CPLC]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution: Nativa en Colombia; Andes?.
Morphology General Habit: Hierba, acuática
Conservation: No Evaluada

[UPFC]

Distribution: Biogeografic region: Andean. Native to Colombia. Colombian departments: Nariño.
Habit: Herb, Aquatic.
Conservation: IUCN Red List Assessment (2021): LC.

[FTEA]

Potamogetonaceae, J.J. Symoens. Flora of Tropical East Africa. 2006

Morphology General Habit: Rooted submerged aquatic with adventitious roots at the nodes of the horizontal shoots.
Vegetative Multiplication Rhizomes: Rhizomes perennial, slender to very robust, terete, whitish, sometimes developing tubers filled with starch and surrounded by a scaly leaf at the end of the growing season (such tubers generally absent in tropical plants).
Morphology Leaves: Submerged leaves bright green to olive green, sessile, (20– )30– 125(– 300) mm long, 0.2– 4 mm wide, 24– 200 times as long as wide, linear, canaliculate or flattened, straight at base, entire at margins, the narrower leaves acute to finely acuminate at apex, sometimes the broader leaves obtuse and mucronate; midrib bordered on each side by one to several air channels, lateral veins 1– 2 on each side, inconspicuous; stipules persistent, fused with the leaves for 8– 70 mm, forming a convolute and winged leaf base, ending in a free hyaline ligule, (3– )5– 15 mm long, obtuse, rounded or truncate, later disintegrating into fibres; intravaginal scales 0.4– 0.6 mm long; floating leaves always absent.
Morphology Reproductive morphology Inflorescences: Peduncles 20– 100(– 450) mm long, 1.5– 5(– 10) times as long as the fruiting spike, as thick as the stem, flexuous; spikes (4– )8– 14-flowered, with 2– 7 pairs or whorls of flowers, contiguous at first, later distant, or the upper groups ± contiguous, 13– 35(– 60) mm long when in fruit.
Morphology Reproductive morphology Flowers: Tepals orbicular to elliptical, 1– 3 mm long; anthers 0.8– 1.3 mm long; carpels 4; stigmas borne on a short but distinct style.
Morphology Reproductive morphology Fruits: Fruitlets brown,(2.5– )3.3– 4.7(– 5.1) mm long, 2– 3.6 mm broad, asymmetrically obovoid, ventrally nearly straight, dorsally very convex, hardly 3-keeled; beak 0.2– 0.6 mm long, ventral, rarely subventral.
Morphology Stem: Stem anatomy:stele of four bundles, mostly oblong; endodermis of U-type; interlacunar bundles present (in 1 ± complete ring); subepidermal bundles few or absent; pseudohypodermis present, 1-(– 2)-layered. Stems annual to perennial, up to 4 m long and 0.5– 2 mm in diameter, filiform to relatively robust, terete, sometimes pink, usually richly branched.
Figures: Fig. 2 (p. 6).
Habitat: Lakes, rivers, irrigation canals, also in brackish and in polluted water; water depth up to 3 m; forming often extensive monospecific patches; also a serious water weed, often blocking the waterflow in irrigation and drainage canals; 350– 2300 m
Distribution: subcosmopolitan, widely distributed in Africa, including North Africa, Madagascar and the Mascarenes Islands K1 K2 K3 K4 T1 T2 T4 T5 T7 U2

[UPFC]

Use Animal Food: Used as animal food.
Use Food: Used for food.
Use Medicines: Medical uses.

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