hello and thank you for your service!
1. is this a sumac (pics dated June 20, 2020). if yes (or not), what type of sumac / or tree. she sends out runners underground. any edible or medicinal qualities? erosion control?
2. is this wineberry? i see it's invasive (https://extension.umd.edu/hgic/topics/wineberry). European? unfortunately, i like the fruit's taste (a small cluster grows at a home we purchased).
but we recently cleared a forest of bamboo (along a stream). i'm seeing wineberry everywhere emerging. i'll eliminate it if it's invasive. (pawpaw and spicebush are reclaiming the newly cleared land. they're popping up everywhere)
Prince George's County Maryland
Hi - The plant in your first photo is indeed sumac and it looks like smooth sumac (Rhus glabra) as opposed to staghorn sumac (Rhus typhina). Check the main stem of the plant and see if it is smooth or fuzzy. Staghorn sumac has fine hairs along the stem and it feels velvety, whereas the smooth sumac is, obviously, smooth.
Here is information on uses of sumac, http://www.aihd.ku.edu/foods/smooth_sumac.html.
The second plant is wine berry. It was introduced from Asia for use in breeding raspberries and is now invasive in parts of Maryland. The berries are edible. http://mdinvasives.org/iotm/sept-2006/