Gaura biennis, commonly known as biennial gaura or biennial beeblossom, is a native (North American) biennial plant that can reach anywhere from 4–6 feet in height at maturity. Its upper half is made up of flowering stems, which are covered with soft, white hairs. Gaura biennis is most well known for its light pink colored flowers, which turn a vibrant red/pink color in the late summer to early fall seasons (August to September, usually). These colors make this plant attractive to butterflies and bees, and are in full bloom just before many fall plant species begin to bloom.

Research has been done in order to test the hybridization between different species of the genus Gaura and to describe why many members of this genus are so similar morphologically. According to Carr et al., Gaura biennis is readily crossbred with Gaura longiflora, showing it is a direct derivative from G. longiflora, but the specialized feature of permanent translocation heterozygosity set G. biennis apart as a unique genetic system amongst the genus.