Compilation
Potamogeton striatus

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Name

Identification
Potamogeton striatus Ruiz & Pav. [family POTAMOGETONACEAE ] (stored under name); Verified by H. Ruiz, Potamogeton striatus Ruiz & Pav. [family POTAMOGETONACEAE ] Verified by Not on sheet,
Related name
  • Potamogeton indet.
  • Potamogeton pectinatus
  • Potamogeton striatus
Common name
  • Nevada-pondweed, Flora of North America Vol. 22

Flora

Entry for Stuckenia striata (Ruiz & Pavon) 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 striata (Ruiz & Pavon) Holub [family ], Preslia, 68: 364. 1997
Potamogeton striatus Ruí [family POTAMOGETONACEAE]
Z & Pavon [family ], Fl. Peruv., 1: 70, fig. 1066. 1798
Potamogeton latifolius (J. W. Robbins) Morong [family POTAMOGETONACEAE]
Information
Stems branched distally, terete to 5-ridged, to 200 cm. Leaves: length and width of those on main stem 2 times or more those on branches; stipules with stipular sheaths not inflated, 1.2--3.4 cm, ligule 0.2--1.1 cm; blade linear, 5--21 cm ´ 0.4--5.1 (--8.5) mm, apex apiculate, cuspidate, or rarely round; veins 3--5. Inflorescences: peduncles axillary, rarely terminal, erect to ascending, cylindric, 1.2--5.2 cm; spikes cylindric, rarely moniliform, 13--45 mm; verticels 4--9. Fruits brown to reddish brown, obovoid to oblanceoloid, 3--3.9 ´ 2.8--3 mm; beak toward abaxial margin, erect or rarely recurved to apex, 0.2--0.3 mm. Chromosome number apparently unknown.not available.
Phenology
Flowering summer--fall
Altitude range
800--2000 m
Distribution
MexicoCentral AmericaSouth America.USA Ariz.USA Calif.USA Colo.USA IdahoUSA N.Mex.USA Nev.USA Oreg.USA Tex.USA Utah
Discussion
Stuckenia striata is widespread, although not common, in the western United States, extending southward into Argentina and Chile. Potamogeton latifolius [no combination in Stuckenia has been proposed] was accepted by R. F. Thorne (1993b). After examining specimens throughout the range and studying dozens of populations in the field, we have determined that the two names represent the same taxon. We are placing P. latifolius in synonymy.

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