Erythronium oregonum |
Erythronium helenae |
|
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deer's tongue, giant fawn-lily, giant white fawn-lily, Oregon fawn-lily, white fawn lily, wild Easter lily |
Mount St. Helena fawn-lily, Pacific fawnlily, St. Helena fawn lily |
|
Bulbs | narrowly ovoid, 25–60 mm, sometimes producing sessile offsets. |
ovoid, 30–55 mm, sometimes producing sessile bulbels. |
Leaves | 12–25 cm; blade distinctly mottled with irregular streaks of brown or white, ovate to broadly lanceolate, margins wavy. |
7–20 cm; blade mottled with irregular streaks of brown or white, broadly lanceolate to ovate, margins ± wavy. |
Scape | ± reddish, 15–40 cm. |
12–30 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. |
fragrant; tepals ± white, bright yellow at base, pinkish in age, lanceolate to ovate, 25–40 mm, inner with small auricles at base; stamens 8–13 mm; filaments ± yellow, linear, ± slender, less than 0.8 mm wide; anthers yellow; style ± white, often bent to one side, 5–8 mm; stigma unlobed or with lobes shorter than 1 mm. |
Capsules | oblong to narrowly obovoid, 3–5 cm. |
obovoid, 2–4 cm. |
2n | = 24. |
= 24. |
Erythronium oregonum |
Erythronium helenae |
|
Phenology | Flowering spring (Mar–May). | Flowering spring (Mar–Apr). |
Habitat | Open coniferous forests, rocky outcrops, oak woodlands, meadows | Dry woods or scrub, on serpentines |
Elevation | 0–500 m (0–1600 ft) | 500–1200 m (1600–3900 ft) |
Distribution |
CA; OR; WA; BC
|
Calif (vicinity of Mount St Helena) |
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.) |
|
Source | FNA vol. 26, p. 158. | FNA vol. 26, p. 160. |
Parent taxa | Liliaceae > Erythronium | Liliaceae > Erythronium |
Sibling taxa | ||
Synonyms | E. giganteum subsp. leucandrum, E. oregonum subsp. leucandrum | |
Name authority | Applegate: Madroño 3: 99. (1935) | Applegate: Contr. Dudley Herb. 1: 188. (1933) |
Web links |
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