ooo so there is a native species...
the ones im used to are the Sambucus canadensis and the Sambucus nigra
looks like the canadensis is native here too...

yay!
elderberry is a large shrub, they get very large, and they get these puffs of flowers that looks like queen annes lace.
the flowers are usually white but some of the nigra species are pink and slightly lemons scented. the flowers are great steeped as a tea to aid in flu preventiaon and "cure"
the berries form in place of the flowers, tiny little dark purple berries in large clusters...
there is a strain with gold berries and one wiht powder blue berries, but the dark purple are most common the berries are very tart fresh but make amazing jam/jelly and wine and are incredibly high in vit-c.
the elderberry berry...
the individual berries are about the size of a small pea
in flower, the flower heads can be a foot or more across but typically are the size of a large hand outstretched.
from what ive been finding online there are also none edible species here in the US.
they look very similar but the berries are red...red elderberries are NOT edible...there not highly poisenous...but they are mildly poisenous and taste horrible...
even the purple elderberries are better "cooked" they tend to be quite tart raw lol.
the flower and berry is edible, but wash hands after handling, and tools if cutting wood, the sap and stems contain a mild toxin.
huckleberry id never heard of, but looking at pics it looks more like a dark blueberry almost...elderberries are much more cluster forming into tiny little current looking berries.
im suprised there not more popular in the US yet being there is a native species, i just assumed they must be hard to get in the us and thats why there hard to find, but with the canadensis growing wild...oooo...definatly keep your eyes peeled.
the berries are considered a "super food" and supposedly higher in antioxidents than blueberries, probably about the same levels as the acai berry. (and much easier to grow lol)
ive seen them called simply "Elder" in some books.