RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Skip to content. | Skip to navigation

Home Publications Climate Change / Assisted Migration Notice of release of Zapata germplasm Rio Grande clammyweed

Notice of release of Zapata germplasm Rio Grande clammyweed

Smith, F. S., Maywald, P. D., Lloyd-Reilley, J., Maher, S. D., Pawelek, K. A., Scott, A. W. Jr., Garza, J. 2010. Native Plants Journal, Volume 11, Number 3: 269-272
Journal Article
Development: Forb Cultivar

Texas, USA

A selected germplasm of Rio Grande clammyweed (Polanisia dodecandra (L.) DC. ssp. riograndensis Iltis [Capparaceae]) has been released for rangeland restoration and wildlife habitat enhancement plantings in south Texas. Zapata Germplasm Rio Grande clammyweed is a warm-season annual forb originating from seed collected from native plants in Dimmitt and Zapata counties of south Texas. Collections were selected based on high proportion of full seed, low levels of seed dormancy, and high seed production potential. Zapata Germplasm is a fast establishing native plant in rangeland plantings, provides excellent habitat to butterflies and other pollinators, and produces seed eaten by a variety of game birds. This release will provide a competitive annual forb useful for providing quick cover in rangeland plantings and will contribute to quality habitat for many wildlife species and pollinators. Zapata germplasm represents the first release of this species.