Foto n. 64414 - sago pondweed (Potamogeton pectinatus)
Robert H. Mohlenbrock USDA-NRCS PLANTS Database / USDA NRCS. 1992. Western wetland flora: Field office guide to plant species. West Region, Sacramento. - Not copyrighted image
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Foto n. 152080 - sago pondweed (Potamogeton pectinatus)
Credit: Photo by Franco Giordana
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Foto n. 71937 - sago pondweed (Potamogeton pectinatus)
Jose Hernandez - USDA-NRCS PLANTS Database - Not copyrighted image
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Foto n. 45237 - sago pondweed (Potamogeton pectinatus)
Walter Hood Fitch - Illustrations of the British Flora (1924) - Permission granted to use under GFDL by Kurt Stueber. Source: www.biolib.de - Permission is granted to copy, distribute and/or modify this image under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
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Foto n. 43524 - sago pondweed (Potamogeton pectinatus)
Credit: Photo by Franco Giordana
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Foto n. 71938 - sago pondweed (Potamogeton pectinatus)
Jose Hernandez - USDA-NRCS PLANTS Database - Not copyrighted image
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Foto n. 62724 - sago pondweed (Potamogeton pectinatus)
Hippolyte Coste - Flore descriptive et illustrée de la France, de la Corse et des contrées limitrophes, 1901-1906 - This image is in public domain because its copyright has expired.
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Foto n. 275979 - sago pondweed (Potamogeton pectinatus)
Credit: Photo by Marco Banzato
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Foto n. 43689 - sago pondweed (Potamogeton pectinatus)
Credit: Photo by Franco Giordana
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