Classification of Natural Ponds and Lakes
in the Glaciated Prairie Region
Plate 21
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| Plate 21. Semipermanent pond, brackish, cover type 2 (IV-D-2). Central deep-marsh zone represented by open-water phase interspersed with and surrounded by emergent vegetation composed of a mixture of hardstem bulrush (Scirpus acutus) and alkali bulrush (Scirpus paludosus). August 7, 1962, Stutsman County, N. Dak. |
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