Sent to Dr. B.Briggs a tthe Univ. of California. "I favor the use of the name - Senecio glomeratus Desf. ex Poir.......instead of Erechtites arguta (A.Rich) D.C.....as they show no evidence of really close relationship to the Erechtites species native in America.
B.Briggs in letter 20 June, 1963.
B.Briggs, 20 June, 1963