hellweed
/ˈhɛlwiːd/noun
Any of various plants considered to be noxious weeds; especially dodder (Cuscuta species), which is parasitic on other plants, and corn buttercup (Ranunculus arvensis), which has spiny seeds.
Origin
Mid 17th century; earliest use found in John Parkinson (1566/7–1650), apothecary and herbalist. From hell + weed.