- upright, upward branching plant growing 4 inches – 6 feet tall
leaf shape varies from coarsely toothed with shallow lobes (lower leaves) to
- narrow and linear shaped (upper leaves)
- inconspicuous small clumps of flowers
- can produce up to 72,000 seeds per plant
- landscape, lawn, cropland and open spaces
- annual; germinates in late spring
- produces flowers and seed in late summer and fall
- seeds can remain viable for over 20 years
- Hand-pull plants in planting beds prior to seed maturation.
- Maintain healthy, competitive desirable vegetation.
- Seed populations can be reduced by soil solarization.
- Apply an appropriate pre-emergent herbicide prior to seed germination or an appropriate post-emergent herbicide directly to target weeds.