Interesting info

Ouch. Don't grab this plant which has sharp barbs along the stem. When touched, the barbs evidently emit an acid that will send painful shock waves up your arm.

You ought to know

Height: 2' - 3'

Frequency: Found infrequently in wet areas of the woods.

Blooms: July to August

Range: Found throughout Indiana.

Also found from Nova Scotia to North Dakota, south to Florida and Kansas.