References:

1. Aldén, B., S. Ryman, & M. Hjertson Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource on www.skud.info). 2012 (Kulturvaxtdatabas)
2. Chinese Academy of Sciences Flora reipublicae popularis sinicae. (F China)
3. Encke, F. et al. Zander: Handwörterbuch der Pflanzennamen, 13. Auflage. 1984 (Zander ed13)
4. FNA Editorial Committee Flora of North America. (F NAmer)
5. Gleason, H. A. & A. Cronquist Manual of vascular plants of northeastern United States and adjacent Canada. (Glea Cron)
6. Jalas, J. & J. Suominen Atlas florae europaeae. (Atlas Eur)
7. Kitagawa, M. Neo-lineamenta florae Manshuricae. (F Manshur)
8. Komarov, V. L. et al., eds. Flora SSSR. (F USSR)
9. Liberty Hyde Bailey Hortorium Hortus third. (Hortus 3)
10. McGregor, R. L. et al. (The Great Plains Flora Association) Flora of the Great Plains. (F GPlains)
11. McGuffin, M., J. T. Kartesz, A. Y. Leung, & A. O. Tucker Herbs of commerce, ed. 2. 2000 (Herbs Commerce ed2)
12. Moss, E. H. & J. G. Packer Flora of Alberta, ed. 2. (F Alberta)
13. Scoggan, H. J. The flora of Canada, 4 vol. (F Canada)
14. Tutin, T. G. et al., eds. Flora europaea, ed. 2. (F Eur ed2)

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2018. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=30367. Accessed 25 April 2018.