Gardeners group roses into classes based on flower shape, breeding and other characteristics. The classes are further identified as “Modern,” “Old Garden” and “Species” based on when that type of rose was developed. “Old Garden” roses are those of a class developed before 1865; “Modern” roses are those of a class developed more recently. “Species” roses, of course, are those found in nature.
| Abbreviation | Class | Group | Description |
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