Erythronium propullans
Erythronium americanum
Minnesota dwarf trout-lily, Minnesota fawnlily, Minnesota trout lily
American trout-lily, dogtooth violet, trout lily, yellow trout-lily, érythrone d'amérique
ovoid, 10–25 mm;
stolon 1 in flowering plants, arising from halfway up stem, 1–3 from bulbs of 1-leaved, nonflowering plants.
ovoid, 15–28 mm;
stolons 1–3, common, mostly on 1-leaved, nonflowering plants.
4–13 cm;
blade green, irregularly mottled, elliptic-lanceolate to ovate-lanceolate or elliptic, ± flat, glaucous, margins entire.
8–23 cm;
blade green, irregularly mottled, elliptic-lanceolate to ovate or elliptic, ± flat, glaucous, margins entire.
3.9–12 cm.
10–18 cm.
1-flowered.
1-flowered.
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 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.
very rarely produced; when present, may be result of hybridization with Erythronium albidum.
held erect or at least off ground at maturity, obovoid, 12–15 mm, apex rounded, truncate, or apiculate.
= 48.
Erythronium propullans
Erythronium americanum
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.)
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.)
1. Capsule apex rounded, truncate, or short-apiculate; stigma lobes erect, not grooved; widespread in ne United States | subsp. americanum |
1. Capsule apex distinctly apiculate; stigma lobes recurved, grooved distally; n Alabama, Georgia, ne Mississippi, Tennessee | subsp. harperi |
MN Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
