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Dogtooth Violet (Erythronium americanum)

Description

Erythronium americanum, the trout lily, yellow trout lily, or yellow dogtooth violet, is a species of perennial, colony forming, spring ephemeral flower native to North America and dwelling in woodland habitats. Within its range it is a very common and widespread species, especially in eastern North America. The common name "trout lily" refers to the appearance of its gray-green leaves mottled with brown or gray, which allegedly resemble the coloring of brook trout. The range is from Labrador south to Georgia, west to Mississippi, and north to Minnesota. A yellow trout lily produces an erect flower stalk with a nodding, bisexual flower with 6 recurved, yellow, lanceolote tepals. The 20 to 33 mm long tepals are composed of 3 petals and 3 petal-like sepals. E. americanum does not flower for the first 4 to 7 years of its life. In any given colony, only 0.5% will have flowers. Trout lilies bloom in early spring before the trees growing above them develop leaves. Blooming at this time allows them unobstructed access to sunlight and time to grow when soil nutrient levels are high. The flowers close at night.

Taxonomic tree

  • Domain: Eukarya

    • Kingdom: Plantae

      • Phylum: Magnoliophyta

        • Class: Liliopsida

          • Order: Liliales

            • Family: Liliaceae

              • Genus: Erythronium