Conioselinum chinense (L.) Britton, Sterns & Poggenb.
Family: Apiaceae
Chinese hemlock-parsley, hemlock-parsley
[Conioselinum pumilum Rose]
Conioselinum chinense image
National Park Service  
Conioselinum chinense image
from USDA Plants Website  
Etymology: Conioselinum: compound of Conium and Selinum from its likeness to these two genera
Plants: erect, perennial, 16"-60" tall forb with 1 to many thick roots
Leaves: deeply cut, triangular-shaped blades, short-winged stalks; lower leaves mostly 2-3 times divided, upper 1 to 2 times
Flowers: white, 5-parted; inflorescence a few, 1"-5" compound, dense umbels with many long stalked, dense umbellets; blooms Aug.-Sept.
Fruits: dry, splitting into 2 seeds, - fruit: fruit drawing seedseed drawing
Habitat: swamps, bogs, wet meadows
Conservation Status: Endangered
Conioselinum chinense image
from USDA Plants Website