Arctium minus

Common Name: 
common burdock
Scientific Name: 
Arctium minus (Hill) Bernh.
Family Name: 
Asteraceae (Compositae) - Aster or Sunflower Family
Identification Notes
Life Cycle
introduced biennial, reproducing by seed
Stems
second year, reproductive, upright, course, branched, red striations
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Stems of Common Burdock
Leaves
first year narrowly to broadly ovate, heart-shaped base, large, hairy, wavy, petioles of larger leaves hollow and not furrowed, form rosette; second year alternate on reproductive stems, small
Leaves of Common Burdock
Leaves of Common Burdock
Flowers
heads of red-purple disk (tubulate) florets; head sessile or short stalked, receptacle hooked bracts
Flowers of Common Burdock
Flowers of Common Burdock
Flowers of Common Burdock
Flowers of Common Burdock
Seed Pods
burs round, hooked bracts sticks to fabric and fur
Seedpods of Common Burdock
Seedpods of Common Burdock