⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50082488, with some changes.

Sphaerostigma contortum var. flexuosum A. Nelson is a synonym of Oenothera contorta var. flexuosa (A. Nelson) Munz

The record derives from Tropicos which reports it as a synonym (record 50082488) with original publication details: Bot. Gaz. 40(1): 58 58 1905.