GROWTH HABIT: Perennial, erect, up to 4' tall.
LEAVES: Varies from light to dark green, oblong or lance shaped, deeply cut, spiny toothed margins (some may be smooth); slightly hairy below. Tremendous leaf variability.
STEMS: Smooth to slightly hairy, branched at top.
FLOWER: Small bristly clusters, 3/8 to 5/8 inch in diameter, light lavender to deep rose purple. Plants are male or female.
ROOTS: Extensive, fleshy, creeping rootstocks.
SEEDS: Smooth, light to dark brown, tipped by a cupped conical point, approx. 1/8" long.
OTHER: Reproduces by seed and creeping rootstocks.