- An annual or biennial erect herbaceous plant, 2-3 feet tall.
- coarsely toothed
- stem leaves sessile
- Pink or purple flowers with four petals, growing in terminal racemes. Blooms in late spring.
- satiny, papery
- white-silver center
- with seeds inside
Key ID Features:
- 4 petals purple flower
- coarsely toothed leaves
- papery white
- large flat fruits
- resembling silver dollars
- Flowers resemble those of Dame's Rocket (Hesperis matronalis).
- On Nantcket, this species is found on roadsides and in other disturbed areas, where it outcompetes other species.
Growth Form: Herb
Level of Invasiveness for Nantucket: Do not list at this time
Level of Invasiveness for Massachusetts: Not evaluated
Massachusetts Cultivation Restrictions: no