A deeply tap rooted biennial or short-lived perennial that grows 1-3 feet tall.
A winter annual grass that grows 6 inches to 2 feet tall.
Rosette leaves are deeply lobed and can reach 12 inches long.
Purple starthistle is a weed in rangeland, grassland, fields, disturbed areas, and along roadsides.
It is prevalent on poor soils, tolerates cold conditions, and survives drought well.
Native to Asia, Japanese knotweed is an escaped ornamental found along roadsides and waterways, in waste areas, and pastures.
Native to Europe, goatsrue is found in wetlands, along waterways and roads, in pastures, and cropland.
Native to Eurasia, giant reed is a weed in waterways and wetlands, disturbed sites, and garden edges.
It thrives in shady sites, and can form dense stands.
Native to Eurasia, elongated mustard is a weed of disturbed sites and roadsides.