1.  Barberry--  this is invasive and research proves it increases tick populations as well as increasing the percentage of ticks infected with Lyme disease.  Remove if at all possible.  Deer do not eat this, so it slowly but completely will take over the ground story of natural areas.

2.  Princess pine or lycopodium - native, wonderful groundcoverhttps://en.wikipedia.org/wiki/Dendrolycopodium_obscurum
It is similar to crowsfoot, and is in the same family.

3.  Winterberry - native. Great bird food source.

Ellen

OMG -- that's terrible about the Barberry!  
Thank you -- the lycopodium is gorgeous.  
Good -- lots of Winterberry at Prettyboy Reservoir.
2 of 3 are native.  uhmmmmm.....  next time i'll bring my clippers for the invasive.....