Erythronium elegans |
Erythronium rostratum |
|
---|---|---|
Coast Range fawn lily, elegant fawn-lily |
beak trout-lily, yellow fawnlily, yellow troutlily |
|
Bulbs | slender, 30–50 mm. |
ovoid, 10–20 mm; stolons 1–3, common, mostly on 1-leaved, nonflowering plants. |
Leaves | 7–20 cm; blade green or faintly mottled with brown or white, narrowly ovate, margins often wavy. |
5–18 cm; blade green, irregularly mottled, elliptic-lanceolate to ovate or elliptic, ± flat, not glaucous, margins entire. |
Scape | 10–30 cm. |
3–10 cm. |
Inflorescences | 1–2(–4)-flowered. |
1-flowered. |
Flowers | tepals: inner ± white, outer ± white and tinged (often strongly) with pink, especially abaxially and along midline, becoming more generally pinkish with age, both inner and outer with yellow band at base, lanceolate to narrowly elliptic, 20–40 mm, abaxial surfaces and outer tepals often darker, inner auriculate at base; stamens 13–22 mm; filaments white, flattened, slightly widened, linear to lanceolate, 0.8–2 mm wide; anthers yellow; style white, 10–20 mm; stigma with slender, usually recurved lobes 2–4 mm. |
held erect at anthesis; tepals yellow, tinged red-purple or orange abaxially, mostly spreading at anthesis, lanceolate, 20–34 mm, inner with conspicuous, well-developed auricles almost encircling opposing filaments; stamens 13–17 mm; filaments yellow, lanceolate; anthers yellow; pollen yellow; style persistent, greenish yellow, swollen distally into stigma, tapering gradually proximally to ovary, forming beak on capsule, 8–11 mm; stigma lobes erect, short, 1 mm. |
Capsules | obovoid to oblong, 2–5 cm. |
held erect at maturity on upward-curving peduncle, ellipsoid to ellipsoid-obovoid, 15–25 mm (excluding beak), apex long-beaked. |
2n | = 48. |
= 24. |
Erythronium elegans |
Erythronium rostratum |
|
Phenology | Flowering late spring (May–Jun). | Flowering spring. |
Habitat | Meadows and open coniferous forests | Mesic woods, often in flood plains and along waterways, also on shaded lower ledges of bluffs |
Elevation | 800–1000 m (2600–3300 ft) | 0–500 m (0–1600 ft) |
Distribution |
OR
|
AL; AR; KS; KY; LA; MO; MS; OH; OK; TN; TX
|
Discussion | Of conservation concern. This species is endemic to the Coast Ranges of western Oregon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Erythronium rostratum is found mostly on either side of the Mississippi River embayment, but rarely within it. It often forms extensive colonies where nonflowering, 1-leaved plants far outnumber flowering ones. This is the only species of Erythronium with erect rather than nodding flowers. Some plants at the western limits of the range are triploids (B. L. Carr 1986). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 157. | FNA vol. 26, p. 162. |
Parent taxa | Liliaceae > Erythronium | Liliaceae > Erythronium |
Sibling taxa | ||
Name authority | P. C. Hammond & K. L. Chambers: Madroño 32: 49, fig. 1. (1985) | W. Wolf: Castanea 6: 24, plate 1. (1941) |
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