Western Trillium (Trillium ovatum)

Good things come in threes! This beauty has 3 leaves, 3 bracts, and 3 pedals!

Trilliums are endlessly fascinating! Did you know:

  • They do not produce nectar; pollinators come for the pollen, rather than the sweet treat most flowers produce.

  • Western Trillium plants live a long time! Up to 50 years!

  • Trillium seeds are attached to a fatty substance called an elaiosome. Ants love this substance, and will carry them off for food. This is a clever way for the plant to distribute seeds for future generations of trilliums!

A bee visits a Trillium flower in early April of 2025.

Trillium ovatum

Western Trillium

Description:

  • Stem is erect, lower stem is bare.

  • Leaves are 2 to 8 inches long, linear to widely egg-shaped, with pointed tips

  • Flowers on one to two, 1/2 inch, erect to weak stalk above leaves. Petals are 1/2 to 3 inches and long, oval with pointed tip, white fading to pink or deep rose-red as the bloom ages.

  • Seed capsule is a green or white berry

  • Grows in cool moist mixed woods, coniferous forests, redwoods, to 6000 ft.

  • Rarity: Common

  • Flowering Time: Early Spring

  • Life Cycle: Perennial

  • Height: 4--18 inches

  • Habitat: West-Side Forest, Coastal, East-Side Forest

  • Found In: Crater Lake Np, Siskiyous, Wallowas, N Cascades Np, Olympic Np, Mt. Rainier Np

  • Native: Yes

Source: Wildflowers of the Pacific Northwest

Additional Resources: