Erythronium oregonum |
Erythronium montanum |
|
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deer's tongue, giant fawn-lily, giant white fawn-lily, Oregon fawn-lily, white fawn lily, wild Easter lily |
avalanche-lily, white avalanche-lily, white glacier lily |
|
Bulbs | narrowly ovoid, 25–60 mm, sometimes producing sessile offsets. |
narrowly ovoid, 25–60 mm. |
Leaves | 12–25 cm; blade distinctly mottled with irregular streaks of brown or white, ovate to broadly lanceolate, margins wavy. |
10–20 cm; blade green, ovate to broadly lanceolate, base ± abruptly narrowed to petiole, margins wavy. |
Scape | ± reddish, 15–40 cm. |
12–35 cm. |
Inflorescences | 1–3-flowered. |
1–3-flowered. |
Flowers | tepals white to creamy white with yellow base at anthesis, sometimes pinkish in age, sometimes with red lines or bands, elliptic to narrowly ovate, 25–40 mm, inner with small auricles at base; stamens 12–25 mm; filaments white, flattened, ± lanceolate, 2–3 mm wide; anthers cream to yellow; style white, 12–18 mm; stigma with recurved lobes 3–6 mm. |
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. |
Capsules | oblong to narrowly obovoid, 3–5 cm. |
oblong, 3–6 cm. |
2n | = 24. |
= 24. |
Erythronium oregonum |
Erythronium montanum |
|
Phenology | Flowering spring (Mar–May). | Flowering summer, usually soon after snowmelt (Jun–Aug). |
Habitat | Open coniferous forests, rocky outcrops, oak woodlands, meadows | Montane and subalpine meadows, open coniferous forests |
Elevation | 0–500 m (0–1600 ft) | (300–)800–2000 m ((1000–)2600–6600 ft) |
Distribution |
CA; OR; WA; BC
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OR; WA; BC
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Discussion | Forms from the southern part of the range with cream-white tepals and pale anthers have been described as subsp. leucandrum. This species is closely related to E. revolutum and occasionally hybridizes with it where their ranges meet. In addition, E. citrinum and E. hendersonii are reported to hybridize with E. oregonum in the southern part of its range. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 26, p. 158. | FNA vol. 26, p. 157. |
Parent taxa | Liliaceae > Erythronium | Liliaceae > Erythronium |
Sibling taxa | ||
Synonyms | E. giganteum subsp. leucandrum, E. oregonum subsp. leucandrum | |
Name authority | Applegate: Madroño 3: 99. (1935) | S. Watson: Proc. Amer. Acad. Arts 26: 130. (1891) |
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