Native, but a long way from home, Mahonia aquifolium, Oregon-grape or Oregon grape

We found this plant on the west side of Rolandvue going up the hill from Towson Run. It is native to the Pacific northwest, but widely planted with many cultivars.  The middle of the photo shows one pinnate leaf with 13 spiny,shiny leaflets.  Latin names are not always included but here aquifolium means holly-like leaf which is pretty descriptive.

It is about one meter tall, a typical height.  There should be yellow flowers in the spring followed by clusters of blue fruit.  Mahonia is not related to true grapes but the fruits appear somewhat similar. The berries can be used for jelly or fermented into wine but are said to be tart, mixed with other berries or with sugar. CCF says a very good wine. Parts of the plant can be used as dyes, possibly as medicinals. The size 14 foot in the picture is for scale,"I meant to do that".
The hyphen in Oregon-grape is apparently illegal, as far as taxonomy, but helps to underline the not true grape aspect.