Rhubarb (Rheum sp. ) leaves and stalks. The stalks are eaten,and are a good source of vitamin C (ascorbic acid). The leaves contain oxalic acid,however,and are toxic | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / TH FOTO-WERBUNG |
Taille de l’image : | 5075 px × 3439 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |