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Montana Field Guide

Montana Field Guides

Budsage - Artemisia spinescens
Other Names:  Picrothamnus desertorum


Global Rank: G5
State Rank: S3

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 13

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

Recency

 

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



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

References
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Citation for data on this website:
Budsage — Artemisia spinescens.  Montana Field Guide.  .  Retrieved on , from