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Senecio ertterae was created in 1978.
Senecio eboracensis was created in 2003.
T. M. Barkley has written:
'Field guide to the common weeds of Kansas' -- subject(s): Identification, Weeds
'A revision of the western North American species of the genus Senecio allied with Senecio integerriumus Nuttall' -- subject(s): Senecio
Beacuse he tasted nice?!
The one also called Senecio was painted in1922.