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Montana Field Guide

Montana Field Guides

Longleaf Wormwood - Artemisia longifolia

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Native Species

Global Rank: G5
State Rank: S5
C-value: 6


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Woody at the base from a branched caudex. Stems ascending or erect, usually simple, 12–80 cm, woody at the base. Herbage aromatic, tomentose; leaves gray above, whitish beneath. Leaves cauline, sessile to short-petiolate, linear-lanceolate, 2–10 cm long, entire. Inflorescence paniculate; heads erect to nodding; bracts linear. Involucre campanulate, 3–4 mm high; phyllaries green, tomentose; receptacle glabrous. Disk flowers 10 to 30, perfect and female, glandular; corolla 1–2.5 mm long; yellow or purple. Achenes glabrous, <1 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
BC to MB south to ID, WY and NE (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 248

(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
Shale-derived soil of grasslands, coniferous woodlands; plains (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).


References
  • 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.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 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.
    • Seipel, T.F. 2006. Plant species diversity in the sagebrush steppe of Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
  • Web Search Engines for Articles on "Longleaf Wormwood"
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Citation for data on this website:
Longleaf Wormwood — Artemisia longifolia.  Montana Field Guide.  .  Retrieved on , from