life
cycle - introduced biennial, reproducing by seed
stems -
second year, reproductive, upright, course, branched, red striations
growth
habit 1, growth
habit 2, growth
habit 3, growth
habit 4, growth
habit 5, stem
striations, young
plant 1, young
plant 2
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
1, leaves
2
flower -
heads of red-purple disk (tubulate) florets; head sessile or
short stalked, receptacle hooked bracts flower
heads 1, flower heads
2, flower heads 3, flower heads 4
seedpods -
burs round, hooked bracts sticks to fabric and fur burs
