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Montana Field Guide

Montana Field Guides

Fetid Dogweed - Dyssodia papposa

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Native Species

Global Rank: G5
State Rank: S4
C-value: 3


Agency Status
USFWS:
USFS:
BLM:


 

External Links

 
General Description
Fibrous-rooted annual. Stems erect to ascending, 5–20 cm, highly branched. Herbage ill-smelling, glabrous or puberulent with sessile glands. Leaves cauline, opposite, petiolate; the blades ovate, 1–2 cm mm long, deeply 1 to 2-times divided into well-separated linear to lanceolate segments. Inflorescence leafy-cymose; heads terminating numerous branches. Heads radiate; involucres campanulate, 5–8 mm high; phyllaries amber-glandular, 6 to 12 in 2 unequal series; outer green, linear-lanceolate; inner purplish, scarious, ovate; receptacle convex, glabrous. Ray flowers 5 to 8, female, orangish; ligules 1–2 mm long. Disk flowers perfect, 12 to 50, yellow to reddish; corolla 2–3 mm long; style appendages elongate, hairy. Pappus 15 to 20 scales in 2 series, each divided into 5 to 10 bristles. Achenes obconic, 3–4 mm long, long-strigose (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
MT to NY south to CA, AZ, NM, TX, TN, WV and Mexico (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 18

(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
Often compacted soil along roads, streambanks; plains, valleys (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?
    • 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 "Fetid Dogweed"
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Citation for data on this website:
Fetid Dogweed — Dyssodia papposa.  Montana Field Guide.  .  Retrieved on , from