Compilation
Potamogeton vaginatus

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Name

Identification
Potamogeton vaginatus Turcz. [family POTAMOGETONACEAE ] (stored under name); Verified by Z. Kaplan, Potamogeton subretusus Hagstr. [family POTAMOGETONACEAE ] Verified by Z. Kaplan,
Related name
  • Potamogeton moniliformis
  • Potamogeton fasciculatus
  • Potamogeton vaginatus
  • Potamogeton x filiformis
  • Potamogeton filiformis
  • Potamogeton subretusus
  • Potamogeton x bottnicus
Common name
  • Bigsheath-pondweed, Flora of North America Vol. 22
  • potamot engainĂ©, Flora of North America Vol. 22

Flora

Entry for Stuckenia vaginata (Turczaninow) Holub [family ]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 22,
Names
Stuckenia vaginata (Turczaninow) Holub [family ], Folia Geobot. Phytotax., 19: 215. 1984
Potamogeton vaginatus Turczaninow [family POTAMOGETONACEAE], Bull. Soc. Imp. Naturalistes Moscou, 27(2): 66--67. 1854
Information
Stems freely branching proximally to distally, terete, 20--50(--70) cm. Leaves: length and width of those on main stem only slightly larger than those on branches; stipules with stipular sheaths inflated 3--5 times stem thickness, 2--9 cm, ligule absent, obscure, or to 0.2 mm; blade narrowly filiform to linear, 1--10(--15) cm ´ 0.2--2.9 mm, apex rounded, obtuse, or slightly notched; veins 1(--3). Inflorescences: peduncles terminal, erect, slender, 3--15 cm; spikes moniliform, 10--80 mm; verticels 3--12. Fruits brown, obliquely obovoid, 3--3.8 mm ´ 2--2.9 mm; beak inconspicuous. 2n = 78.
Phenology
Flowering late summer--fall
Altitude range
0--2300 m
Distribution
Eurasia.USA AlaskaUSA Colo.USA IdahoUSA Minn.USA Mont.USA N.Dak.USA Oreg.USA S.Dak.USA UtahUSA Wash.USA Wis.USA Wyo.Canada Alta.Canada B.C.Canada Man.Canada N.W.T.Canada NunavutCanada Ont.Canada Que.Canada Sask.Canada Yukon
Discussion
One hybrid, P. pectinatus ´ P. vaginatus (= P. ´ bottnicus Hagström), with this species as a putative parent has been described under the genus Potamogeton.

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