Ambrosia chenopodiifolia

Ambrosia chenopodiifolia
Conservation status
	; Vulnerable (NatureServe)
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; (Benth.) Payne
Synonyms
	Franseria chenopodiifolia Benth.; Franseria lancifolia Rydb.; Gaertneria chenopodiifolia (Benth.) Abrams;

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]

References

External links

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[1] The Plant List Ambrosia chenopodiifolia (Benth.) W.W.Payne

[ns-2] Ambrosia chenopodiifolia. NatureServe. 2012.

[3] Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 419

[4] Calflora taxon report, University of California @ Berkeley, Ambrosia chenopodiifolia (Benth.) Payne San Diego bur sage, San Diego bursage

[i-5] Flora of North America Vol. 21 Page 14 Ambrosia chenopodiifolia (Bentham) W. W. Payne, J. Arnold Arbor. 45: 419. 1964

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