Sonchus asper
spiny sowthistle

Sonchus asper

Sonchus asper
Photo Courtesy Renee Brecht
Britton & Brown
Botanical name: Sonchus asper
Common name: spiny sowthistle
Group: dicot
Family: Asteraceae
Growth type: forb/herb
Duration: annual
Origin: introduced
Plant height: to 6'
Foliage: bluish-green alternate leaves, with milky sap, simple, wavy or lobed margins, covered with spines
Flower: yellow ray flowers only, resembling that of a dandelion
Flowering time: May - October
Habitat: weed of open, disturbed ground, fields, roadside
Range in New Jersey: statewide
Heritage ranking, if any: n/a
Misc.: This plant is considered to be a weed by many authorities. It is wind-dispersed.