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Montana Field Guide

Montana Field Guides

Glacier Lily - Erythronium grandiflorum

Native Species

Global Rank: G5
State Rank: S5

Agency Status
MNPS Threat Rank:
C-value: 4

External Links

General Description
Scapose, glabrous perennials from slender bulbs. Scape erect, 7–30 cm, ebracteate. Leaves 2, basal, short-petiolate; the blade 5–20 cm long, narrowly elliptic, fleshy. Inflorescence solitary or few terminal, nodding flowers. Flowers regular, narrowly campanulate, opening to star-shaped in full sun; tepals yellow, rarely white, separate, narrowly lanceolate, 15–40 mm long, reflexed during the day; stamens shorter than tepals; anthers yellow or red; stigma capitate or 3-lobed. Fruit an erect, oblong-ovoid, 3-lobed, many-seeded capsule 25–50 long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

We have varieties grandiflorum and candidum (Piper) Abrams.

Species Range

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

Observations in Montana Natural Heritage Program Database
Number of Observations: 676

(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)

Mostly montane to subapline.

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Citation for data on this website:
Glacier Lily — Erythronium grandiflorum.  Montana Field Guide.  .  Retrieved on , from