life
cycle – perennial,
reproducing by seed
stems – upright,
stout, tall, unbranched, solid purple or green with purple
streaks above, hollow, smooth, glaucous growth habit 1,
growth habit 2
leaves – whorled
4-7 per node, lanceolate narrow or broad, petioled, pubescent,
margins blunt toothed with extend veins at points leaves 1, leaves 2
flowers – heads
of purple to mauve or pink disk (tubulate) florets, 5-7 florets
per head; terminal cluster, round topped becoming cylindrical
flowers
