Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Ambrosia chenopodiifolia is a species of ragweed known by the common name San Diego Burrsage or San Diego Burr Ragweed. It is native to Baja California, and California as far north as San Diego County, where it is a member of the coastal sage scrub plant community. This 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 flower cluster bearing heads of pistillate (female) flowers below a cluster of staminate (male) flowers. The flower cluster is spiny, especially when in fruit. The fruit is a spherical, woolly bur about half a centimeter long covered in hooked spines.

Plant type

Shrub

Size

6 - 11 ft Tall

Calscape icon
Color

Cream

Flowering season

Spring

Special uses

Hedge

Sun

Full Sun

Plant communities

Coastal Sage Scrub

Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 14 likely

Confirmed Likely

Garden Webworm Moth

Achyra rantalis

Ambrosia Plume Moth

Adaina ambrosiae

Ancylosis morrisonella

Ragweed Borer

Epiblema strenuana