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Montana Field Guide

Montana Field Guides

Long-leaf Speedwell - Veronica longifolia

Non-native Species

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

Agency Status


External Links

General Description
Stoloniferous perennial. Stems 40–100 cm, erect, creeping at the base. Herbage puberulent. Leaves opposite or whorled, lanceolate, serrate, petiolate, 4–12 cm long. Inflorescence a terminal, densely-flowered, puberulent raceme; pedicels 1–2 mm long. Flowers: calyx 2–4 mm long; corolla blue to violet, 6–9 mm across; style 6–10 mm long. Capsule ovoid, 2–4 mm long, glabrous, shallowly notched (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Introduced sporadically across northern U.S. and adjacent Canada. One collection from Sanders County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 2

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Relative Density



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


The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus vagans and Bombus pensylvanicus (Colla and Dumesh 2010).


  • Literature Cited AboveLegend:   View Online Publication
    • Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141: 39-68.
    • 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 "Long-leaf Speedwell"
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Citation for data on this website:
Long-leaf Speedwell — Veronica longifolia.  Montana Field Guide.  .  Retrieved on , from