Its natural habitat is sandy coastal ravines in the coastal sage scrub plant community and riparian riverbeds in the Cuyamaca Mountains and other Peninsular Ranges, below 600 metres (2,000 ft) in elevation.  Most of this habitat has been destroyed as the land has been developed for human uses. It is occasionally found farther inland in chaparral plant communities near Redlands and in the San Emigdio Mountains. 
The gray-green aromatic foliage is made up of long, narrow leaves deeply cut into several narrow, pointed lobes. 
- The Plant List Artemisia palmeri A.Gray
- Tropicos, Artemisia palmeri A. Gray
- Calflora taxon report, University of California, Artemisia palmeri A. Gray San Diego sage, San Diego sagewort
- United States Department of Agriculture Plants Profile
- Flora of North America Vol. 19, 20 and 21 Page 531, Palmer sagewort, Artemisia palmeri A. Gray, Proc. Amer. Acad. Arts. 11: 79. 1876.
- Calflora: Distribution map.
- Plants Of Jack's Pond, A Checklist Of Trees, Shrubs and Herbaceous Species Compiled During May 2000 by Wayne P. Armstrong, Life Sciences Dept., Palomar College Archived August 2, 2015, at the Wayback Machine.
- iNaturalist: San diego sagewort (Artemisia palmeri)
- CNPS Inventory of Rare and Endangered Plants, 8th edition: Artemisia palmeri, accessed 1.10.2016.
- Jepson: Artemisia palmeri
- Lady Bird Wildflower Center, University of Texas
- Calflora Database: Artemisia palmeri (San diego sagewort)
- Jepson Manual eFlora (TJM2) treatment of Artemisia palmeri
- USDA Plants Profile for Artemisia palmeri (San Diego sagewort)
- Artemisia palmeri in the CalPhotos Photo Database, University of California, Berkeley
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