life
cycle – native perennial,
reproducing by seed
stems – upright,
stout, tall, unbranched, purple spotted or tinged, solid or
partially hollow, rough pubescence growth habit
leaves – whorled
3-4 (5) per nodes, ovate narrow or broad,
strongly 3-veined, margins toothed leaves 1, leaves 2, leaves
3
flowers -
heads of purple disk (tubulate) florets, 6-9 florets per head;
terminal cluster, round topped becoming cylindrical
flower
heads 1, flower
heads
2
