| Ambrosia chenopodiifolia | |
|---|---|
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| Scientific classification  | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Asterids | 
| Order: | Asterales | 
| Family: | Asteraceae | 
| Genus: | Ambrosia | 
| Species: | A. chenopodiifolia  | 
| Binomial name | |
| Ambrosia chenopodiifolia | |
| Synonyms[1] | |
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Ambrosia chenopodiifolia is a species of ragweed known by the common names San Diego bursage and San Diego bur ragweed.[2] It is native to the Mexican states of Baja California and Baja California Sur (Comondu Municipality),[3] as well as to Orange[4] and San Diego Counties it int US State of California.[5] It is a member of the coastal sage scrub plant community.
Description
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.[5]
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.[5]
Galls
This species is host to the following insect induced gall: Aceria franseriae bead leaf gall Mite external link to gallformers external link to inaturalist images
References
- ↑ The Plant List Ambrosia chenopodiifolia (Benth.) W.W.Payne
 - ↑ Ambrosia chenopodiifolia. NatureServe. 2012.
 - ↑ Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 419
 - ↑ Calflora taxon report, University of California @ Berkeley, Ambrosia chenopodiifolia (Benth.) Payne San Diego bur sage, San Diego bursage
 - 1 2 3 Flora of North America Vol. 21 Page 14 Ambrosia chenopodiifolia (Bentham) W. W. Payne, J. Arnold Arbor. 45: 419. 1964
 
External links
 Media related to Ambrosia chenopodiifolia at Wikimedia Commons- Calflora Database: Ambrosia chenopodiifolia (San diego bur sage, San diego bursage)
 - Jepson Manual eFlora (TJM2) treatment of Ambrosia chenopodiifolia
 - Ambrosia chenopodiifolia UC Calphotos Photo gallery: Ambrosia chenopodiifolia
 

