Профиль таксономии: Echinops ritro ssp. ruthenicus (M Bieb Nyman)

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

TROPICOS, botanical information system at the Missouri Botanical Garden, available at http://www.tropicos.org/