Flora of North America species comparison

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Erythronium propullans

Erythronium oregonum

Minnesota dwarf trout-lily, Minnesota fawnlily, Minnesota trout lily

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

ovoid, 10–25 mm;

stolon 1 in flowering plants, arising from halfway up stem, 1–3 from bulbs of 1-leaved, nonflowering plants.

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

4–13 cm;

blade green, irregularly mottled, elliptic-lanceolate to ovate-lanceolate or elliptic, ± flat, glaucous, margins entire.

12–25 cm;

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

3.9–12 cm.

± reddish, 15–40 cm.
Inflorescences

1-flowered.

1–3-flowered.
Flowers

tepals 4–6, strongly reflexed at anthesis, pale pink to white, darker abaxially, lanceolate, 8–15 mm, auricles absent;

stamens 2–6, 6–8 mm;

filaments white, lanceolate;

anthers yellow;

pollen yellow;

style white, 6–10 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

very rarely produced; when present, may be result of hybridization with Erythronium albidum.

oblong to narrowly obovoid, 3–5 cm.
2n

= 24.

Erythronium propullans

Erythronium oregonum
Phenology Flowering spring. Flowering spring (Mar–May).
Habitat Mesic floodplain woods Open coniferous forests, rocky outcrops, oak woodlands, meadows
Elevation 300 m (1000 ft) 0–500 m (0–1600 ft)
Distribution
from FNA
MN
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Erythronium propullans is known only from Goodhue and Rice counties. It often forms extensive colonies in which flowering plants are sometimes more abundant than nonflowering, 1-leaved ones, and sometimes the reverse. It grows mixed with E. albidum (J. A. Banks 1980), and putative hybrids between them have been reported (T. Morley 1988). Flowers frequently have fewer than six tepals and stamens (C. O. Rosendahl 1919), and may occasionally have only two carpels.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

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. 164. 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. klamathense, E. mesochoreum, E. montanum, E. multiscapideum, E. oregonum, E. pluriflorum, 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 A. Gray: Amer. Naturalist 5: 300, fig. 74. (1871) Applegate: Madroño 3: 99. (1935)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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