Common in large colonies in moist prairies, ditches etc.
Occasional specimens on exposed, eroded ground near roadside.
Occasional in open, dry prairie.
Very common along roadsides and forest edges.
Common prairie, roadside plant.
Occasional in open prairie.
Common in dry prairie soils.
Occasional along moist roadsides.
Introduced and naturalizing. Occasional to common in moist areas.
Scattered population in open prairie after recent rains.
Terrible picture. Growing in open prairie after recent rains. Locally common.
Common along roadsides.
Feeding on Prairie Parsnip (Polytaenia nuttallii). Thinking P. polyxenes but leave it to those in the know....
What do you think?