| Title | Monographie der nord- und centralamerikanischen Arten der Gattung Senecio |
| Abbreviation | Monogr. Senecio |
| Authors | J. M. Greenman |
| Publication Dates | 14 Aug 1901 |
| Place of publication | Leipzig |
| HOLLIS | 005922464 |
| TL2 | 2.145 |
| Remarks | Preprinted from Bot. Jahrb. Syst. 32: 1-33. May 1902. Description: 37[2]p. |
The Harvard University Herbaria hold 2 type specimens of taxa described in this publication
Senecio crocatus var. wolfii Greenman [Syntype] 1901, 24Senecio crocatus var. wolfii Greenman [Syntype] 1901, 24