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Ambrosia deltoidea (Triangle bur ragweed)
Wasowski, Sally and Andy

Ambrosia deltoidea

Ambrosia deltoidea (Torr.) Payne

Triangle Bur Ragweed, Bursage, Bur Sage, Triangle Bursage

Asteraceae (Aster Family)

Synonym(s): Franseria deltoidea

USDA Symbol: AMDE4

USDA Native Status: L48 (N)


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Subshrub , Shrub
Inflorescence: Terminal
Fruit Type: Achene
Size Notes: Up to about 32 inches tall.
Flower: Flowers very small.

Bloom Information

Bloom Color: Yellow , Green
Bloom Time: Feb , Mar , Apr , May , Jun , Jul
Bloom Notes: Yellowish to greenish, male and female flowers on different stalks, inconspicuous.



Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR


Bibref 995 - Native Landscaping from El Paso to L.A. (2000) Wasowski, S. and A. Wasowski

Search More Titles in Bibliography

Web Reference

Webref 38 - Flora of North America - beta site (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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


Record Modified: 2022-11-09
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