Ambrosia chenopodiifolia

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Ambrosia chenopodiifolia
Conservation status

Vulnerable (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Heliantheae
Genus: Ambrosia
Species: A. chenopodiifolia
Binomial name
Ambrosia chenopodiifolia
(Benth.) Payne

Franseria chenopodiifolia

Ambrosia chenopodiifolia is a species of ragweed known by the common names San Diego bursage and San Diego bur ragweed.[1] It is native to Baja California, and southern California as far north as San Diego County, where it is a member of the coastal sage scrub plant community.


Ambrosia chenopodiifolia is a thickly branching shrub exceeding 3 meters in maximum height. The leaves are ovals up to 3 centimeters long and coated in white hairs. They are sometimes lobed.

Like other ragweeds it is monoecious, with each inflorescence bearing heads of pistillate (female) flowers below a cluster of staminate (male) flowers. The inflorescence is spiny, especially when in fruit. The fruit is a spherical, woolly bur about half a centimeter long covered in hooked spines.

See also[edit]


  1. ^ Ambrosia chenopodiifolia. NatureServe. 2012.

External links[edit]