| Sign out the Peterson Field Guide to Trees and Shrubs from your local library. It has keys to identifing shrubs and will have details about identifying not only whether elderberry, but which one. The native elderberry with black berries in a flat panicle (Sambucus nigra) is edible, the one with red berries (S. racemosa) is poisonous. |
Here is a link that might be useful: Elderberry pictures
| Just make sure you've not got pokeweed before you start chowing down on the berries. |
Here is a link that might be useful: Pokeweed