Conyza canadensis
Asteraceae
Canadian Fleabane
Single, erect, stiff-haired, leafy stem. Leaves alternate, to 4 in. long, entire or shallowly scalloped. Flower heads in large branched cyme clustered at branch ends. Flowers with very short white petals, cup 1/8 in. in diameter, resinous bracts with brown midvein. Grows in disturbed soils, roadsides, around the world usually in low-elevation sites.
- Rarity: Common
- Flowering Time: Early Summer, Mid Summer, Late Summer
- Flower Form: Aster Tribe, Composite
- Life Cycle: Annual, Biennial
- Height: 8–40 inches
- Habitat: Disturbed
- Found In: N Cascades NP, Olympic NP, Siskiyous, Steens, Wallowas
- Native: Yes
- Also Known As: Horseweed
