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Montana Field Guide

Montana Field Guides

Common Viper's-bugloss - Echium vulgare
Other Names:  Blueweed, Blueweed (WGA)

Noxious Weed: Priority 1B
Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 0

External Links

General Description
Taprooted biennial. Stems erect, 20–80 cm. Herbage strigose, hispid with broad-based trichomes. Leaves basal and cauline, petiolate, 6–20 cm long, becoming sessile above; blades linear to linear-oblanceolate. Inflorescence an elongate, bracteate raceme of helicoid cymes. Flowers showy; calyx hispid, deeply divided, 5–8 mm long; corolla campanulate, blue, sometimes reddish-tinged, 15–20 mm long with 5 unequal lobes; stamens unequal, 4 exserted; style deeply 2-lobed, hairy. Nutlests 2–3 mm long, bullet-shaped, rugose; scar basal, surrounded by a rim (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced to north-temperate N. America; native to Europe (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 25

(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)


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Citation for data on this website:
Common Viper's-bugloss — Echium vulgare.  Montana Field Guide.  .  Retrieved on , from