Artemisia arbuscula explained

Artemisia arbuscula is a North American species of sagebrush known by the common names little sagebrush, low sagebrush, or black sagebrush. It is native to the western United States from Washington, Oregon, and California east as far as Colorado and Wyoming. It grows in open, exposed habitat on dry, sterile soils high in rock and clay content.^{[1] [2] [3]}

Description

Artemisia arbuscula is a gray-green to gray shrub forming mounds generally no higher than . Its many branches are covered in hairy leaves each less than a centimeter long. The inflorescence is a spike-shaped array of clusters of hairy flower heads. Each head contains a few pale yellow disc florets but no ray florets. The fruit is a tiny achene less than a millimeter wide.^[1]

Subspecies^[1]

• Artemisia arbuscula subsp. arbuscula
• Artemisia arbuscula subsp. longiloba (Osterh.) L.M.Shultz
• Artemisia arbuscula subsp. thermopola Beetle - Idaho, Utah, Wyoming

Galls

This species is host to the following insect induced galls:

• Eutreta diana (Osten Sacken, 1877) fly stem gall
• Rhopalomyia conica
• Rhopalomyia medusa Gagné, 1983 Sagebrush Medusa Gall Midge
• Rhopalomyia obovata Gagné, 1983

External links

• • • United States Department of Agriculture National Forest Service Info Sheet
• Save The Sagebrush Sea
• Gallformers

Notes and References

1. Web site: Artemisia arbuscula in Flora of North America @ efloras.org. www.efloras.org. 2017-02-06.
2. http://bonap.net/MapGallery/County/Artemisia%20arbuscula.png Biota of North America Program 2014 county distribution map
3. http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Artemisia+arbuscula Calflora taxon report, University of California, Artemisia arbuscula Nutt., Black sagebrush, low sagebrush