Arizona Wild Flowers
Wildflower Pictures And Photos

Triangleleaf Bursage, Ambrosia deltoidea

Triangleleaf Bursage, Ambrosia deltoidea. Photo February 14, 2006. North Peoria.

Triangle Burr Ragweed Ambrosia deltoidea	Triangleleaf Bursage, Ambrosia deltoidea

Triangleleaf Bursage Ambrosia deltoidea, Aster Family ( Asteraceae ) Formerly called the Compositae or composite family., Triangleleaf Bursage. Also called Triangle Burr Ragweed, Triangle Leaf Bursage. . A sprawling shrub up to 3 1/2 feet tall. With red - brown bark becoming smooth and shiny. The stems are red - brown with white a pubescence, stout, brittle, with narrow leaf scars. The leaves are alternate, simple, evergreen, and triangular shaped, they are coarse serrate or toothed, green above and below but covered in a pale pubescence, they are drought deciduous. The flowers are a dull yellow-green, in small clusters borne on a spike, and present in late winter to early spring. Height: Up To About 40" Tall. Same spread. Flowers: Yellow - green, 5 large yellow petals about 1/2 inch long, with red - brown veins, 10 stamens with large orange anthers. Blooming Time: Mid February - October. Fruit: Slightly curved pods, 3/4 to 1 1/3 inches long, are tipped by a stiff point about 1/8 inch long. Leaves: Dull green pinnate leaves with 2 to 3 pairs of elliptical leaflets. Found: Southern Arizona, Baja California, Sonora Mexico. Elevation: 0 - 3,000 Feet. Habitat: Cities along roadsides and sandy river bottoms, and washes in the deserts. Xeriscape Landscaping. Miscellaneous: Flowering Photos Taken February 14, 2006.