Hello there friends, this is my first post and I apologise if I'm not in the right category.
I've been searching in regards to whether or not all birch species have the same edibility (sap, twigs, etc). I'm surprised I wasn't able to find the information. I'm very curious about the sap, as it would be incredibly useful if all birch species' sap was drinkable.
Sources cited would be greatly appreciated.
Thank you in advance for you help.
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