Foto n. 62505 - mud grass (Coleanthus subtilis)
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. 13225 - mud grass (Coleanthus subtilis)
Otto Wilhelm Thomé: Flora von Deutschland, Österreich und der Schweiz (1885) - 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. 68704 - mud grass (Coleanthus subtilis)
Jose Hernandez - USDA-NRCS PLANTS Database - Not copyrighted image
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Foto n. 65187 - mud grass (Coleanthus subtilis)
Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. Washington, DC. - Non-Copyrighted Image
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