An ephedra plant,a source of ephedrine alkaloids,on the Cattail Falls trail,Chihuahuan Desert,Big Bend National Park,Texas | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dimijian, Gregory G. |
Taille de l’image : | 2460 px × 3700 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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