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Erythronium klamathense

Klamath fawn-lily

deer's tongue, giant fawn-lily, giant white fawn-lily, Oregon fawn-lily, white fawn lily, wild Easter lily

Bulbs

slender, 25–40 mm.

narrowly ovoid, 25–60 mm, sometimes producing sessile offsets.

Leaves

6–17 cm;

blade green, lanceolate to narrowly elliptic, ± folded along midvein, margins entire to wavy.

12–25 cm;

blade distinctly mottled with irregular streaks of brown or white, ovate to broadly lanceolate, margins wavy.

Scape

6–20 cm.

± reddish, 15–40 cm.

Inflorescences

1–3-flowered.

1–3-flowered.

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 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.

Capsules

narrowly obovoid, 2–5 cm.

oblong to narrowly obovoid, 3–5 cm.

2n

= 24.

= 24.

Erythronium klamathense

Erythronium oregonum

Phenology Flowering late spring to summer (Apr–Jun). Flowering spring (Mar–May).
Habitat Montane meadows, openings in coniferous forests Open coniferous forests, rocky outcrops, oak woodlands, meadows
Elevation 1200–1900 m (3900–6200 ft) 0–500 m (0–1600 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
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. 158.
Parent taxa Liliaceae > Erythronium Liliaceae > Erythronium
Sibling taxa
E. albidum, E. americanum, E. californicum, E. citrinum, E. elegans, E. grandiflorum, E. helenae, E. hendersonii, E. mesochoreum, E. montanum, E. multiscapideum, E. oregonum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, E. revolutum, E. rostratum, E. taylorii, E. tuolumnense, E. umbilicatum
E. albidum, E. americanum, E. californicum, E. citrinum, E. elegans, E. grandiflorum, E. helenae, E. hendersonii, E. klamathense, E. mesochoreum, E. montanum, E. multiscapideum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, E. revolutum, E. rostratum, E. taylorii, E. tuolumnense, E. umbilicatum
Synonyms E. giganteum subsp. leucandrum, E. oregonum subsp. leucandrum
Name authority Applegate: Contr. Dudley Herb. 1: 151. (1930) Applegate: Madroño 3: 99. (1935)
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