Grindelia robusta Nuttall
Grindelia robusta Nuttall is a synonym sensu Bartoli & Tortosa, 2012 of:
Grindelia humilis Hooker & Arnott var. humilis, an accepted variety name sensu Bartoli & Tortosa, 2012.
Grindelia robusta Nuttall is a synonym sensu Bartoli & Tortosa, 2012 of:
Grindelia humilis Hooker & Arnott var. humilis, an accepted variety name sensu Bartoli & Tortosa, 2012.