Baltic parsley (Cenolophium denudatum) looks rather like a more-substantial—and longer-lived—Queen Anne’s lace, with lacy, deep green leaves and dense umbels of white flowers in early to mid- or late summer; typically 3 to 4 feet tall in bloom. Full sun to light shade. Perennial. I can’t find much information on this elegant and uncommon plant, but it’s fully hardy here in Zone 6/7.
Collected in August 2020. At least 20 seeds.