Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Budsage - Artemisia spinescens
Other Names:  Picrothamnus desertorum

Native Species

Global Rank: G5
State Rank: S3

Agency Status


External Links

General Description
Dwarf shrub 5–15 cm. Stems profusely branched; dead branches often forming thorns. Herbage villous. Leaves petiolate; blades 4–10 mm long, 1 to 2 times divided into oblanceolate lobes. Inflorescence leafy-bracted, short-racemose on branch tips. Involucre globose, ca. 2 mm high; phyllaries few, green, villous; receptacle glabrous. Disk flowers 7 to 20, female and male ca. 1 mm long, yellow, villous. Achenes villous, ca. 1 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
Beaverhead and Carbon counties; OR to MT south to CA, AZ and NM (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 20

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Generally occurs in sandy soil of alluvial plains; abundant only on soils developed from Chugwater sandstone.

  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Harvey, S.J. 1990. Responses of steppe plants to gradients of water soil texture and disturbance in Montana, U.S.A. Ph.D. Thesis. Bozeman, MT: Montana State University. 34 p.
    • Quire, R.L. 2013. The sagebrush steppe of Montana and southeastern Idaho shows evidence of high native plant diversity, stability, and resistance to the detrimental effects of nonnative plant species. M.Sc. Thesis. Bozeman, MT: Montana State University. 124 p.
  • Web Search Engines for Articles on "Budsage"
Login Logout
Citation for data on this website:
Budsage — Artemisia spinescens.  Montana Field Guide.  .  Retrieved on , from