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Erythronium revolutum

coast fawn lily, mahogany fawn lily, pink fawn-lily

beak trout-lily, yellow fawnlily, yellow troutlily

Bulbs

narrowly ovoid, 35–50 mm, sometimes producing sessile offsets.

ovoid, 10–20 mm;

stolons 1–3, common, mostly on 1-leaved, nonflowering plants.

Leaves

10–25 mm;

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

5–18 cm;

blade green, irregularly mottled, elliptic-lanceolate to ovate or elliptic, ± flat, not glaucous, margins entire.

Scape

15–40 cm.

3–10 cm.

Inflorescences

1–3-flowered.

1-flowered.

Flowers

tepals uniformly clear violet-pink at anthesis, with yellow banding at base, lanceolate to narrowly elliptic, 25–40 mm, inner with small auricles at base;

stamens ± appressed to style, 12–22 mm;

filaments white to pink (darkening with age), flattened, ± lanceolate, 2–3 mm wide;

anthers bright yellow;

style white to pink, 12–18 mm;

stigma with slender recurved lobes 4–6 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

oblong to obovoid, 3–6 cm.

held erect at maturity on upward-curving peduncle, ellipsoid to ellipsoid-obovoid, 15–25 mm (excluding beak), apex long-beaked.

2n

= 24.

Erythronium revolutum

Erythronium rostratum

Phenology Flowering early spring (Mar–Apr). Flowering spring.
Habitat Shaded stream banks, river terraces, wet places in forests Mesic woods, often in flood plains and along waterways, also on shaded lower ledges of bluffs
Elevation 0–600(–1000) m (0–2000(–3300) ft) 0–500 m (0–1600 ft)
Distribution
from FNA
CA; OR; WA; BC; generally within 100 km of Pacific Coast
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; KS; KY; LA; MO; MS; OH; OK; TN; TX
[WildflowerSearch map]
[BONAP county map]
Discussion

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. 158. FNA vol. 26, p. 162.
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. klamathense, E. mesochoreum, E. montanum, E. multiscapideum, E. oregonum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, 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. oregonum, E. pluriflorum, E. propullans, E. purpurascens, E. pusaterii, E. quinaultense, E. revolutum, E. taylorii, E. tuolumnense, E. umbilicatum
Name authority Smith: in A. Rees, Cycl. 13: Erythronium no. 3. (1809) W. Wolf: Castanea 6: 24, plate 1. (1941)
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