United States Department of Agriculture/Agricultural Research Service, Systematic Botany & Mycology Laboratory, Bldg. 011A, Beltsville Agricultural Research Center (BARC-West), Beltsville, MD 20705-2350 U.S.A.; (http://www.ars-grin.gov/npgs/tax)
Reference for:
Echinops ritro
Source(s):
Source:
NODC Taxonomic Code
Acquired:
1996-07-29
Notes:
Reference for:
Echinops ritro
Source:
Asteraceae of North America Update
Acquired:
2010-05-13
Notes:
Update coordinated by the International Compositae Alliance (TICA) (http://www.compositae.org/) through the Smithsonian Institution in collaboration with the USDA National Plant Data Center