Stuckenia striata

(Ruiz & Pavon) Holub

Preslia 68: 364. 1997.

Common names: Nevada-pondweed
Basionym: Potamogeton striatus Ruiz & Pavon Fl. Peruv. 1: 70, fig. 1066. 1798
Synonyms: Potamogeton latifolius (J. W. Robbins) Morong
Treatment appears in FNA Volume 22.

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.
Habitat: Waters of alkaline rivers, canals, and ponds
Elevation: 800–2000 m


V22 423-distribution-map.jpg

Ariz., Calif., Colo., Idaho, N.Mex., Nev., Oreg., Tex., Utah, Mexico, Central America, South America.


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.

Selected References


Lower Taxa

... more about "Stuckenia striata"
Robert R. Haynes +  and C. Barre Hellquist +
(Ruiz & Pavon) Holub +
Potamogeton striatus +
Nevada-pondweed +
Ariz. +, Calif. +, Colo. +, Idaho +, N.Mex. +, Nev. +, Oreg. +, Tex. +, Utah +, Mexico +, Central America +  and South America. +
800–2000 m +
Waters of alkaline rivers, canals, and ponds +
Flowering summer–fall. +
Potamogeton latifolius +
Stuckenia striata +
Stuckenia +
species +