tarweed

tar·weed  (tärwd)

n.

1. Any of several strong-smelling, resinous western American and Chilean plants of the genus Madia, having yellow, rayed flower heads.

2. Any of several similar or related plants.

Thesaurus

Noun	1.	tarweed - any of various resinous glandular plants of the genus Madia; of western North and South America genus Madia, Madia - genus of sticky herbs with yellow flowers open in morning or evening but closed in bright light Chile tarweed, madia oil plant, Madia sativa, melosa - South American herb with sticky glandular foliage; source of madia oil herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
	2.	tarweed - any of various western American plants of the genus Grindelia having resinous leaves and stems formerly used medicinally; often poisonous to livestock gum plant, gumweed, rosinweed genus Grindelia, Grindelia - large genus of coarse gummy herbs of western North and Central America Grindelia robusta - perennial gumweed of California and Baja California curlycup gumweed, Grindelia squarrosa - perennial gumweed of western and central North America herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests