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Erythronium rostratum (Yellow troutlily)
Smith, R.W.

Erythronium rostratum

Erythronium rostratum W. Wolf

Yellow Troutlily, Dog-tooth Violet, Yellow Fawnlily, Beaked Troutlily

Liliaceae (Lily Family)


USDA Symbol: ERRO5

USDA Native Status: L48 (N)

The Dog-tooth Violet is actually a lily. It grows 4-8 inches tall on a bare stem that grows out of a pair of sturdy leaves that reach higher than the blossom. The leaves, 1 1/4-1 1/2 inches wide, are smooth and shiny, with each side curved toward the center. The single blossom has 6 yellow tepals that curve backward toward the stem and are 3/4-1 1/2 inches long. The 6 stamens have brown anthers.


From the Image Gallery

5 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 8 inches tall.
Fruit: Seeds brown.

Bloom Information

Bloom Color: Yellow
Bloom Time: Mar , Apr , May


USA: AL , AR , KS , KY , LA , MO , MS , OH , OK , TN , TX

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Mt. Cuba Center - Hockessin, DE


Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

Search More Titles in Bibliography

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Erythronium rostratum in USDA Plants
FNA: Find Erythronium rostratum in the Flora of North America (if available)
Google: Search Google for Erythronium rostratum


Record Modified: 2023-04-11
Research By: TWC Staff

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