Chelone obliqua var. obliqua
Leaves: mid-cauline blade 53–80(–117) mm. Flowers: calyx lobe margins not or sparsely ciliate; corolla: abaxial lobes (12–)15–19 mm; staminode (6–)8–12(–14) mm. 2n = 84.
Phenology: Flowering Jul–Oct.
Habitat: Along streams, marshes, swamps, seeps, springs, wet meadows and woods, pond and lake margins.
Elevation: 0–100 m.
Ala., Ga., Ky., Md., Miss., N.C., S.C., Tenn., Va.
Variety obliqua is considered to be vulnerable to extinction throughout the Coastal Plain Province; specific threats to populations have not been assessed (NatureServe, www.natureserve.org/explorer).