Synonyms
Senecio fastigiatus Nutt.
Senecio ligulifolius Greene
Senecio leucocrinus Greene
Senecio macounii Greene
Senecio fastigiatus var. erosodentatus Greenm.
Senecio spatulifolius Kellogg
Senecio fastigiatus subsp. macounii (Greene) Greenm.
Senecio spatuliformis A.Heller