Asteraceae

Woolly fruit bur ragweed

Ambrosia eriocentra (A.Gray) W.W.Payne

Family: Asteraceae
Genus: Ambrosia

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Woolly fruit bur ragweed (Ambrosia eriocentra) — FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist

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Common names

By language (1)

English: Woolly fruit bur ragweed, Woolly-fruit burr-ragweed, Hollyleaf bursage, Woolly bursage, Woolly fruit burr ragweed, Wooly bursage, Woollyfruit burr ragweed

Synonyms

Franseria eriocentra A.Gray
Gaertneria eriocentra (A.Gray) Kuntze

Flowers

In flower: March to May (from 60 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Shrub, Subshrub
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: Matt Berger, CC BY 4.0, from iNaturalist
FlowerPhoto: Daniel McNair, CC BY 4.0, from iNaturalist
FlowerPhoto: Stephanie Taylor, CC0, from iNaturalist
FlowerPhoto: Steve Matson, CC BY 4.0, from iNaturalist
LeavesPhoto: CK2AZ, CC BY 4.0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Trevor Van Loon, CC BY 4.0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Daniel McNair, CC BY 4.0, from iNaturalist
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons
Photo: Dominic Gentilcore, CC BY 4.0, from iNaturalist

More in Ambrosia

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.