Ambrosia chenopodiifolia
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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 the Mexican states of Baja California and Baja California Sur (Comondu Municipality),[2] as well as to Orange[3] and San Diego Counties it int US State of California.[4] 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.[4]
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.[4]
Galls
This species is host to the following insect induced gall: Aceria franseriae bead leaf gall mite.
References
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- ↑ Ambrosia chenopodiifolia. NatureServe. 2012.
- ↑ Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 419
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- ↑ a b c Script error: No such module "citation/CS1".
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External links
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- Ambrosia (plant)
- Flora of California
- Flora of Baja California
- Flora of Baja California Sur
- Natural history of the California chaparral and woodlands
- Natural history of San Diego County, California
- Plants described in 1844
- Taxa named by George Bentham
- Critically endangered flora of California