Mycelis muralis
Asteraceae
Wall Lettuce
Erect, slender plant with widely branched stems; contains milky sap. Leaves clasping; lower leaves unusually pinnately divided into usually 5 large angular, toothed segments; few upper leaves smaller. Inflorescence consists of open clusters of many flower heads, each with 5 yellow, extended, ray-like disk flowers. Many flower heads open only for morning; flying seeds with long white bristles more noticeable in afternoon. Native of Europe, now found in large numbers along roads even in logged areas.
- Rarity: Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: Chicory Tribe, Composite
- Life Cycle: Annual
- Height: 2–4 feet
- Habitat: Disturbed, Meadow, West-side Forest
- Found In: Mt. Rainier NP, N Cascades NP, Olympic NP, Siskiyous
- Native: No
- Latin Synonyms: Lactuca muralis
