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Erythronium hendersonii

Henderson's fawn-lily

Mount St. Helena fawn-lily, Pacific fawnlily, St. Helena fawn lily

Bulbs

slender, 40–55 mm.

ovoid, 30–55 mm, sometimes producing sessile bulbels.

Leaves

10–25 cm;

blade mottled with irregular streaks of brown or white, oblong to ovate, margins entire to ± wavy.

7–20 cm;

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

Scape

reddish, 12–30 cm.

12–30 cm.

Inflorescences

1–4-flowered.

1–3-flowered.

Flowers

tepals violet to pink, darker at tips, dark purple at base, broadly lanceolate, 18–35 mm, inner with small auricles at base;

stamens 10–14 mm;

filaments violet-purple, linear, slender, less than 0.8 mm wide;

anthers pale brown to purple;

style violet, 6–8 mm;

stigma unlobed or with lobes shorter than 1 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

obovoid, 2–4 cm.

obovoid, 2–4 cm.

2n

= 24.

= 24.

Erythronium hendersonii

Erythronium helenae

Phenology Flowering spring (Mar–Apr). Flowering spring (Mar–Apr).
Habitat Dry woods and forest openings Dry woods or scrub, on serpentines
Elevation 300–1600 m (1000–5200 ft) 500–1200 m (1600–3900 ft)
Distribution
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
from USDA
Calif (vicinity of Mount St Helena)
[BONAP county map]
Source FNA vol. 26, p. 160. FNA vol. 26, p. 160.
Parent taxa Liliaceae > Erythronium Liliaceae > Erythronium
Sibling taxa
E. albidum, E. americanum, E. californicum, E. citrinum, E. elegans, E. grandiflorum, E. helenae, E. klamathense, 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. hendersonii, E. klamathense, 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
Name authority S. Watson: Proc. Amer. Acad. Arts 22: 479. (1887) Applegate: Contr. Dudley Herb. 1: 188. (1933)
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