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Montana Field Guide

Montana Field Guides

Lyall's Angelica - Angelica arguta

Native Species

Global Rank: G5
State Rank: S5
(see State Rank Reason below)
C-value: 5

Agency Status


External Links

State Rank Reason (see State Rank above)
Common throughout at least western and southcentral counties. This is our most common Angelica. Grows in a wide variety of habitats.
General Description
Stems erect, 50–150 cm. Herbage anise-scented, glabrate or sparsely pubescent on veins beneath. Leaves bipinnate; leaflets ovate to narrowly elliptic, 3–10 cm long, serrate, sometimes the basal few-lobed. Umbels: rays unequal, 2–8 cm long; involucre and involucel absent. Flowers white; petals 1–2 mm long. Mericarps glabrous, obovate, 4–7 mm long; lateral ribs broadly winged; dorsal ribs narrowly winged (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions


Range Comments
BC, AB to CA, UT and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 576

(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)

Meadows, wet forests, woodlands, avalanche slopes, especially in aspen groves, along streams; montane, subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

  • 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?
    • Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
    • Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
    • Stivers, T.S. 1988. Effects of livestock grazing on grizzly bear habitat along the east front of the Rocky Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 80 p.
  • Web Search Engines for Articles on "Lyall's Angelica"
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Citation for data on this website:
Lyall's Angelica — Angelica arguta.  Montana Field Guide.  .  Retrieved on , from