Surprisingly, it seems the plant itself and the berries aren't poisonous and are edible. The only warnings I came across are the berries could have a laxative effect if you eat too many of them, and if you forage the stems to eat, you could kill the plant, so only do it with a big wild patch of it.
Info from Eat the Planet:
https://eattheplanet.org/false...
And from Missouri Department of Conversation:
https://mdc.mo.gov/discover-na...
False Solomon's seal is a popular native plant for landscaping in partially shady locations, as it offers pretty sprays of flowers, bright berries, and interesting foliage, which turns yellow in fall.
The young shoots can be cooked and eaten like asparagus, in all the ways asparagus might be served: as a side dish, in stir-fries, omelets, casseroles, soups, and so on. Since collecting this way may kill the plant, only harvest this native wildflower where it very abundant, and do not overcollect in any given area.
The ripe berries may also be eaten raw or cooked. Note that they are said to have laxative properties, especially if you eat a lot of them
The roots of this species have been used medicinally.
This plant was named "false Solomon's seal" because of its resemblance to a plant called Solomon's seal.
