noun
Usage: usually capitalized I
Etymology: indian (II) 2
1. : an American wild lobelia ( Lobelia inflata ) with small blue flowers and inflated capsules formerly used as an antispasmodic
2.
[probably from indian (II) 1]
: hemp
3. : a wild tobacco ( Nicotiana rustica )
4. : a plant of the genus Antennaria ; especially : a common cat's-foot ( A. plantaginifolia ) of eastern No. America