triangleleaf bursage Asteraceae Ambrosia deltoidea (Torr.) Payne   symbol: AMDE4
	Leaf: Alternate, simple, evergreen, distinctly triangular or with a wedge-shaped base, coarse serrate or toothed, nearly lobed, green above and covered in white pubescence, pale below, drought deciduous. Flower: Dull yellow-green, in small clusters borne on a spike, present in late winter to early spring. Fruit: A spiny round bur with slender spines, 1/2 inch in diameter. Twig: Reddish brown with white pubescence, brittle, narrow leaf scars, resinous. Bark: Reddish brown and becoming smooth and shiny, later becoming somewhat scaly or shallowly ridged and furrowed. Form: A gangling, sprawling shrub to 2 feet tall.
	No range map exists for this species. See a map of the states in which Ambrosia deltoidea can be found (opens a new window). USDAFS Additional Silvics - USDA Plants Database Ambrosia deltoidea is native to North America.