Home/Species/ Sheathed Pondweed

Stuckenia vaginata

(Turcz.) Holub

Sheathed Pondweed

G5Secure Found in 1 roadless area NatureServe Explorer →

G5SecureGlobal Rank

Least concernIUCN

Identity

Unique IDELEMENT_GLOBAL.2.141847

Element CodePMPOT03140

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

IUCNLeast concern

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomPlantae

PhylumAnthophyta

ClassMonocotyledoneae

OrderNajadales

FamilyPotamogetonaceae

GenusStuckenia

Synonyms

Potamogeton vaginatusTurcz.

Other Common Names

Big-sheathed Pondweed (EN) Potamot engainé (FR) sheathed pondweed (EN)

Concept Reference

Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.

Taxonomic Comments

Recognized in Kartesz (1999) and FNA (vol. 22, 2000) as Stuckenia vaginata.

Conservation Status

Rank MethodExpertise without calculation

Review Date2015-07-29

Change Date1988-06-16

Edition Date1995-06-29

Edition AuthorsK. Crowley, MRO

Range Extent>2,500,000 square km (greater than 1,000,000 square miles)

Number of Occurrences81 to >300

Rank Reasons

Potamogeton vaginatus occurs across a broad range that includes Eurasia as well as North America. It is somewhat less common than previously thought because all supposed populations of this species in the northeastern U.S. have been determined to be P. filiformis. P. vaginatus is very common in Saskatchewan, the Yukon, and the Northwest Territories.

Range Extent Comments

Potamogeton vaginatus occurs primarily in northwestern North America and in Eurasia. In North America, it ranges from Quebec and Ontario west to British Columbia and north to Alaska; and from Canada south to Oregon, Utah, Colorado, and South Dakota.

Occurrences Comments

Collected at close to 100 sites in North America. This species also occurs in Eurasia.

Threat Impact Comments

P. vaginatus is threatened by water pollution by mining and agriculture, eutrophication of ponds and lakes, lakeside development, invasion of habitat by exotic plant species, and changes in hydrology.

Ecology & Habitat

Habitat

Potamogeton vaginatus occurs primarily in alkaline waters in shallow-to-deep ponds, lakes, or streams. It tends to occur in areas of low wave action up to a depth of approximately 2 m.

Other Nations (2)

CanadaN5

Province	Rank	Native
Nunavut	S3	Yes
Yukon Territory	S5	Yes
Ontario	S5	Yes
Saskatchewan	S4	Yes
Manitoba	S4	Yes
Alberta	S4	Yes
Quebec	S3	Yes
British Columbia	S4	Yes
Northwest Territories	S4	Yes

United StatesNNR

Province	Rank	Native
South Dakota	SH	Yes
Colorado	S1	Yes
Utah	S1	Yes
North Dakota	S3	Yes
Washington	SNR	Yes
Michigan	SNR	Yes
Alaska	SNR	Yes
Minnesota	S1	Yes
Montana	SNR	Yes
Wyoming	S2	Yes
Idaho	SNR	Yes
New Jersey	SU	Yes
Wisconsin	S1	Yes

Plant Characteristics

Economic Value (Genus)No

Roadless Areas (1)

Montana (1)

Area	Forest	Acres
Ten Lakes #683	Kootenai National Forest	48,545

References (7)

Cody, Bill. Agriculture Canada. Centre for Land and Biological Resources Research, Wm. Saunders Building. C.E.F. Ottawa, Ontario. Pers. comm. of June 14, 1995, with Kathy Crowley, MRO.
Flora of North America Editorial Committee (FNA). 2000. Flora of North America north of Mexico. Vol. 22. Magnoliophyta: Alismatidae, Arecidae, Commelinidae (in part), and Zingiberidae. Oxford Univ. Press, New York. xxiii + 352 pp.
Harms, Dr. Vernon. Fraser Herbarium, University of Saskatchewan, Saskatoon, Saskatchewan. Pers. comm. of June 29, 1995, with Kathy Crowley, MRO.
Helquist, B. Dept. of Biology, N. Adams State College, N. Adams, MA. Personal communication of May 23, 1995, with K. Crowley, MRO.
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Myhre, K. 2001. Comments by K. Myhre on rare species list for fisheries. Email memo. 23 May 2001. 2pp.