| Title | Additions to the Flora of Worcester County Massachusetts by Joseph Jackson 1909 a List of Plants Found Growing out of Cultivation. Worcester, MA |
| Abbreviation | Add. Fl. Worcester Co. |
| Authors | J. Jackson |
| Publication Dates | 1927 |
| TL2 | 3.222 |
| Title | Additions to the Flora of Worcester County Massachusetts by Joseph Jackson 1909 a List of Plants Found Growing out of Cultivation. Worcester, MA |
| Abbreviation | Add. Fl. Worcester Co. |
| Authors | J. Jackson |
| Publication Dates | 1927 |
| TL2 | 3.222 |