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Montana Field Guide

Montana Field Guides

Jimsonweed - Datura stramonium
Other Names:  Devil's Snare

Non-native Species

Global Rank: GU
State Rank: SNA
C-value: 1


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Annual. Stems erect, branched, 30–150 cm. Herbage glabrate to puberulent, especially on the veins, poisonous. Leaf blades ovate, 6–18 cm long, sharply lobed. Inflorescence of solitary, axillary flowers. Flowers showy; calyx tubular, 3–5 cm long with short lanceolate lobes; corolla white to purple, funnelform, the tube 5–8 cm long, the limb 3–5 cm across with shallow, mucronate lobes. Fruit an erect, spiny to unarmed, ovoid capsule 2–4 cm long, subtended by a collar formed from the calyx base (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Non-native
 


Range Comments
Introduced to much of the U.S., more common in the south; native to tropical America (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 10

(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
Roadsides, railroad rights-of-way, yards, gardens; valleys (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Management

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.
  • Web Search Engines for Articles on "Jimsonweed"
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Citation for data on this website:
Jimsonweed — Datura stramonium.  Montana Field Guide.  .  Retrieved on , from