Ambrosia ilicifolia
| Ambrosia ilicifolia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Ambrosia |
| Species: | A. ilicifolia
|
| Binomial name | |
| Ambrosia ilicifolia | |
| Synonyms[1] | |
| |
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]
References
- ^ The Plant List Ambrosia ilicifolia (A.Gray) W.W.Payne
- ^ Calflora taxon report, University of California, Ambrosia ilicifolia (A. Gray) Payne holly leaved burbush, hollyleaf bursage
- ^ a b Flora of North America Vol. 21 Page 12 Ambrosia ilicifolia (A. Gray) W. W. Payne
- ^ Biota of North America Program 2014 county distribution map
- ^ Payne, Willard William 1964. Journal of the Arnold Arboretum 45(4): 425
- ^ Jepson Manual Treatment — Ambrosia ilicifolia
External links
- Calflora Database: Ambrosia ilicifolia (Holly leaved burbush, Hollyleaf bursage)
- Jepson Manual eFlora (TKM2) treatment of Ambrosia ilicifolia
- UC Calphotos Photo gallery: Ambrosia ilicifolia
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- Ambrosia (plant)
- Flora of the Sonoran Deserts
- Flora of the California desert regions
- Flora of Arizona
- Flora of Baja California
- Flora of Sonora
- Natural history of the Colorado Desert
- Plants described in 1876
- Taxa named by Asa Gray
- Flora without expected TNC conservation status
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