Water horsetail (Equisetum fluviatile) stems. Horsetails are primitive plants that have existed since the Carboniferous period (360- 299 million years ago). Today,although only 15 species still exist,they are found across much of the world | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 3500 px × 5102 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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