Samolus floribundus is a perennial herb to 30 cm tall, branched.
Leaves in a basal rosette, and alternate along stem, widest above middle, to 5 cm long, tip rounded, base tapered to short stalk.
Flowers white, to 0.3 cm wide, 5-parted on elongate stalks to 2 cm long, in terminal clusters; blooming May-Sept.
Fruit dry, a capsule to 0.3 cm.
Wetland status: OBL.
Frequency in NYC: Very infrequent.
Habitat: Brackish water, wet soil, muddy banks.