Dougl. ex Lehm.
Gaura parviflora (syn. G. mollis James; Velvetweed, Velvety Gaura, Downy Gaura, or Smallflower Gaura) is a species of Gaura native to the central United States and northern Mexico, from Nebraska and Wyoming south to Durango and Nuevo Leon.
It is an annual plant growing to 0.2–2 m (rarely 3 m) tall, unbranched, or if branched, only below the flower spikes. The leaves are 2–20 cm long, lance-shaped, and are covered with soft hair. The flower spikes are 20–30 cm long, covered with green flower buds, which open at night or before dawn with small flowers 5 mm diameter with four pink petals.
The species remains widely known as Gaura parviflora, this name being published in 1832 and for a long time considered the correct name for the species. However, an overlooked but validly published name G. mollis had been published earlier by Thomas Potts James in 1825. A proposal was made to conserve the name G. parviflora over G. mollis, and this was accepted by the International Botanical Congress Committee for Spermatophyta, so G. parviflora remains the correct name. Despite this, the rejected name G. mollis appears in some major sources.
- Germplasm Resources Information Network: Gaura parviflora
- Jepson Flora: Gaura parviflora
- Southwest Environmental Information Network: Gaura mollis
- Wildflowers of Tucson: Gaura mollis
- Wagner, W. L., & Hoch, P. (2000). Proposal to Reject the Name Gaura mollis (Onagraceae). Taxon 49 (1): 101-102.
- Brummitt, R. K. (2001). Report of the Committee for Spermatophyta: 52. Taxon 50 (4): 1179-1182.
- USDA Plant Profile: Gaura mollis
- Camazine, Scott and Robert A. Bye 1980 A Study Of The Medical Ethnobotany Of The Zuni Indians of New Mexico. Journal of Ethnopharmacology 2:365-388 (p. 377)
- Flora of China: Gaura parviflora
- PlantNet (Australia): Gaura parviflora
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