Ambrosia tomentosa, the skeletonleaf bur ragweed,[3] silverleaf povertyweed, or skeleton-leaf bursage,[4][5][6] is a North American species of perennial plants in the family Asteraceae.

[7] Skeletonleaf bur ragweed is native to the west-central part of the United States, primarily the western Great Plains, the Colorado Plateau, and eastern Great Basin.

[8][9] It is often found growing alongside roads and in the sandy parts of plains.

The deeply lobed hairy leaves grow to 5 inches (12.7 cm) and have toothed margins.

Flowers are small and yellow and produce spined 2-seeded burrs.