umbelliferous plant

Any one of several umbelliferous plants, of the genera Myrrhis, Osmorrhiza, etc.

a genus of poisonous umbelliferous plants, of which the water hemlock or cowbane is best known.

A poisonous umbelliferous plant

An umbelliferous plant (Peucedanum Cous) with edible tuberous roots, found in Oregon.

An umbelliferous plant (Foeniculum dulce) having a somewhat tuberous stem