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Erythronium montanum

avalanche-lily, white avalanche-lily, white glacier lily

pilot ridge fawn lily, Taylor's fawn-lily

Bulbs

narrowly ovoid, 25–60 mm.

narrowly ovoid, 40–70 mm, often forming sessile offsets.

Leaves

10–20 cm;

blade green, ovate to broadly lanceolate, base ± abruptly narrowed to petiole, margins wavy.

18–35 cm;

blade green, elliptic to oblanceolate, margins wavy.

Scape

12–35 cm.

25–40 cm.

Inflorescences

1–3-flowered.

1–4(–8)-flowered.

Flowers

tepals white to creamy white with bright yellow zone at base, broadly ovate to broadly lanceolate, 25–45 mm, inner wider than outer, auriculate at base, length less than 4 times width;

stamens 12–24 mm;

filaments white, linear, slender, less than 0.8 mm wide;

anthers bright yellow;

style white, 13–25 mm;

stigma with slender, usually recurved lobes 1–5 mm.

tepals white, proximal 1/2–2/3 bright yellow, becoming pinkish in age, lanceolate, 25–45 mm, inner auriculate at base;

stamens 10–16 mm;

filaments yellow, slender;

anthers cream colored;

style white to cream, 9–11 mm;

stigma ± unlobed or with lobes shorter than 1 mm.

Capsules

oblong, 3–6 cm.

obovoid, 2–4 cm.

2n

= 24.

Erythronium montanum

Erythronium taylorii

Phenology Flowering summer, usually soon after snowmelt (Jun–Aug). Flowering spring (Apr–May).
Habitat Montane and subalpine meadows, open coniferous forests Forest openings, rocky ledges
Elevation (300–)800–2000 m ((1000–)2600–6600 ft) 1300–1400 m (4300–4600 ft)
Distribution
from FNA
OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

This species occurs in the Coast Ranges of southern British Columbia, and disjunctly to southern Vancouver Island, the Olympic Peninsula, and Cascade Mountains from Mount Rainier National Park in Washington to central Oregon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Erythronium taylorii is known only from Tuolumne County in the central Sierra Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 26, p. 157. FNA vol. 26, p. 159.
Parent taxa Liliaceae > Erythronium Liliaceae > Erythronium
Sibling taxa
E. albidum, E. americanum, E. californicum, E. citrinum, E. elegans, E. grandiflorum, E. helenae, E. hendersonii, E. klamathense, E. mesochoreum, E. multiscapideum, E. oregonum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, E. revolutum, E. rostratum, E. taylorii, E. tuolumnense, E. umbilicatum
E. albidum, E. americanum, E. californicum, E. citrinum, E. elegans, E. grandiflorum, E. helenae, E. hendersonii, E. klamathense, E. mesochoreum, E. montanum, E. multiscapideum, E. oregonum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, E. revolutum, E. rostratum, E. tuolumnense, E. umbilicatum
Name authority S. Watson: Proc. Amer. Acad. Arts 26: 130. (1891) Shevock & G. A. Allen: Madroño 44: 360, fig. 1. (1998)
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