Black Hawthorn (Crataegus douglasii) is a thorny shrub or small tree that makes delicious berries. These are grown from wild-harvested seeds collected in western Montana.
These 12 to 24 inch tall 3rd year seedlings.
Photo Credit: Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons