They look very familiar to me but the name does not come to my overloaded brain. I would just grow them and find out that way. If they were saved chances are its a good plant. A clue I would give you is that it seems to be a small shrubby plant.
Starting them in containers is the best bet.
They resemble lily seed pods of some sort. I’ve seen them before like Kevalsha but the lily family is endless. Plant some now 7-18th because many perennial plants get a head start by sprouting in Fall & growing thru Winter & many bloom the next Spring. Hope this helps! Trudy