Ambrosia ilicifolia

Ambrosia ilicifolia
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Ambrosia
Species:	A. ilicifolia
Binomial name
*Ambrosia ilicifolia* (A.Gray) W.W.Payne
Synonyms^[1]
Franseria ilicifolia A.Gray Gaertneria ilicifolia (A.Gray) Kuntze

Ambrosia ilicifolia is a species of ragweed known by the common names hollyleaf burr ragweed and hollyleaf bursage.^[2]

It is native to the deserts and mountains of western Arizona, and the adjacent Sonoran Desert areas of southeastern California, Sonora and Baja California. It grows in dry washes, scrub, and other local habitats.^[3]^[4]

Description

Ambrosia ilicifolia is a small, matted shrub under 1 metre (3.3 ft) in height. Its stiff, straight branches are green, glandular, and leafy when young, and light gray and leafless when older. The holly-like leaves are leathery but brittle, oval-shaped to rounded, and edged with spine-tipped teeth. They are green, veiny and sticky with resin.^[3]^[5]

The inflorescence holds several spiny staminate (male) flower heads next to larger pistillate (female) heads. Each pistillate head produces usually two fruits, which are yellow-brown burrs nearly 2 centimeters wide. Each burr is rounded, sticky, and covered in hooked spines.^[6]

The name ilicifolia is from the Ilex, scientific name for the genus containing hollies, plus "folius," Latin for "leaf."

References

External links

This article is issued from Wikipedia - version of the 9/26/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.