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Polycnemum arvense
Jacob Sturm, Johann Georg Sturm -Deutschlands Flora in Abbildungen (1796). Source: www.biolib.de - The copyright of this image has expired.
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Polycnemum arvense
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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Canforata selvatica
field needleleaf
Field Polycnemum
soft needle-leaf
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