Oenothera lindheimeri is a perennial herbaceous plant growing to 50-150 cm tall, with densely clustered branched stems growing from an underground rhizome.
The flowers are produced on a 10-80 cm long inflorescence; they are pink or white, 2-3 cm diameter, with four petals 10-15 mm long and long hairlike stamens, and are produced from the beginning of spring until the first frost [REF].