Erythronium klamathense |
Erythronium americanum |
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Klamath fawn-lily |
American trout-lily, dogtooth violet, trout lily, yellow trout-lily, érythrone d'amérique |
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Bulbs | slender, 25–40 mm. |
ovoid, 15–28 mm; stolons 1–3, common, mostly on 1-leaved, nonflowering plants. |
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Leaves | 6–17 cm; blade green, lanceolate to narrowly elliptic, ± folded along midvein, margins entire to wavy. |
8–23 cm; blade green, irregularly mottled, elliptic-lanceolate to ovate or elliptic, ± flat, glaucous, margins entire. |
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Scape | 6–20 cm. |
10–18 cm. |
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Inflorescences | 1–3-flowered. |
1-flowered. |
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Flowers | tepals 2/3 or more white, with yellow zone at base, ± pinkish in age, broadly lanceolate, 20–35 mm, inner with small auricles at base; stamens 8–14 mm; filaments white, slender; anthers ± yellow; style white, 4–9 mm; stigma ± unlobed. |
tepals yellow, sometimes tinged light to dark purple-red abaxially, sometimes with reddish dots adaxially, strongly reflexed at anthesis, lanceolate, 20–33 mm, inner with small auricles; stamens 9–15 mm; filaments yellow, lanceolate; anthers yellow, chestnut brown, or lavender; pollen yellow or brown; style deciduous or base forming small apiculum, greenish yellow, 5–11 mm, swollen distally or ± terete; stigma lobes erect or recurved, 1.5 mm. |
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Capsules | narrowly obovoid, 2–5 cm. |
held erect or at least off ground at maturity, obovoid, 12–15 mm, apex rounded, truncate, or apiculate. |
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2n | = 24. |
= 48. |
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Erythronium klamathense |
Erythronium americanum |
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Phenology | Flowering late spring to summer (Apr–Jun). | |||||
Habitat | Montane meadows, openings in coniferous forests | |||||
Elevation | 1200–1900 m (3900–6200 ft) | |||||
Distribution |
CA; OR
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e North America
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Discussion | Varieties 2 (2 in the flora). Erythronium americanum is a very common and widespread species, particularly in northeastern North America, becoming less frequent towards the southern and western limits of its range. Nonflowering plants far outnumber flowering ones in most populations because of their extensive stolon production. Plants with brown anthers have been called forma castaneum L. B. Smith. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 158. | FNA vol. 26, p. 161. | ||||
Parent taxa | Liliaceae > Erythronium | Liliaceae > Erythronium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Applegate: Contr. Dudley Herb. 1: 151. (1930) | Ker Gawler: Bot. Mag. 28: plate 1113. (1808) | ||||
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