Erythronium montanum |
Erythronium propullans |
|
---|---|---|
avalanche-lily, white avalanche-lily, white glacier lily |
Minnesota dwarf trout-lily, Minnesota fawnlily, Minnesota trout lily |
|
Bulbs | narrowly ovoid, 25–60 mm. |
ovoid, 10–25 mm; stolon 1 in flowering plants, arising from halfway up stem, 1–3 from bulbs of 1-leaved, nonflowering plants. |
Leaves | 10–20 cm; blade green, ovate to broadly lanceolate, base ± abruptly narrowed to petiole, margins wavy. |
4–13 cm; blade green, irregularly mottled, elliptic-lanceolate to ovate-lanceolate or elliptic, ± flat, glaucous, margins entire. |
Scape | 12–35 cm. |
3.9–12 cm. |
Inflorescences | 1–3-flowered. |
1-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 4–6, strongly reflexed at anthesis, pale pink to white, darker abaxially, lanceolate, 8–15 mm, auricles absent; stamens 2–6, 6–8 mm; filaments white, lanceolate; anthers yellow; pollen yellow; style white, 6–10 mm; stigma ± unlobed. |
Capsules | oblong, 3–6 cm. |
very rarely produced; when present, may be result of hybridization with Erythronium albidum. |
2n | = 24. |
|
Erythronium montanum |
Erythronium propullans |
|
Phenology | Flowering summer, usually soon after snowmelt (Jun–Aug). | Flowering spring. |
Habitat | Montane and subalpine meadows, open coniferous forests | Mesic floodplain woods |
Elevation | (300–)800–2000 m ((1000–)2600–6600 ft) | 300 m (1000 ft) |
Distribution |
OR; WA; BC
|
MN
|
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.) |
Of conservation concern. Erythronium propullans is known only from Goodhue and Rice counties. It often forms extensive colonies in which flowering plants are sometimes more abundant than nonflowering, 1-leaved ones, and sometimes the reverse. It grows mixed with E. albidum (J. A. Banks 1980), and putative hybrids between them have been reported (T. Morley 1988). Flowers frequently have fewer than six tepals and stamens (C. O. Rosendahl 1919), and may occasionally have only two carpels. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 157. | FNA vol. 26, p. 164. |
Parent taxa | Liliaceae > Erythronium | Liliaceae > Erythronium |
Sibling taxa | ||
Name authority | S. Watson: Proc. Amer. Acad. Arts 26: 130. (1891) | A. Gray: Amer. Naturalist 5: 300, fig. 74. (1871) |
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