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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Ambrosia tomentosa

Ambrosia tomentosa Nutt.

Skeletonleaf Bur Ragweed, Silverleaf Povertyweed, Skeleton-leaf Bursage

Asteraceae (Aster Family)

Synonym(s): Franseria discolor, Franseria tomentosa, Gaertneria discolor, Gaertneria tomentosa

USDA Symbol: AMTO3

USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 1 foot tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: White , Yellow , Green
Bloom Time: Jun , Jul , Aug , Sep
Bloom Notes: Flowers are inconspicuous and without ray florets.


USA: AZ , CO , IA , ID , IL , KS , MO , MT , ND , NE , NM , SD , TX , UT , WI , WY

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Ambrosia tomentosa in USDA Plants
FNA: Find Ambrosia tomentosa in the Flora of North America (if available)
Google: Search Google for Ambrosia tomentosa


Record Modified: 2018-12-11
Research By: CBR

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