Parkinson, H.; DeBolt, A. 2005. Propagation protocol for production of container Penstemon deustus. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Parkinson, H.; DeBolt, A. 2005. Propagation protocol for production of container Penstemon speciosus. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Parkinson, H.; DeBolt, A. 2005. Propagation protocol for production of container Penstemon speciosus. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Jensen, Scott L. 2007. Propagation protocol for production of container Agoseris heterophylla. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Jensen, S.L. 2007. Propagation protocol for production of container Agoseris grandiflora. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Jensen, S.L. 2007. Propagation protocol for production of container Agoseris glauca. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Jensen, S.L. 2007. Propagation protocol for production of container Agoseris aurantiaca. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Tilley, D.; St. John, L.; Ogle, D.; Shaw, N.; Cane, J. 2012. Propagation protocol for production of Lomatium triternatum seeds. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Tilley, D.; St. John, L.; Ogle, D.; Shaw, N.; Cane, J. 2012. Propagation protocol for production of Lomatium dissectum seeds. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org
Tilley, D.; St. John, L.; Ogle, D.; Shaw, N. 2012. Propagation protocol for production of Lomatium grayi seeds. Native Plant Network. U.S. Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources. http://NativePlantNetwork.org