Leaf midrip colour
RHS colour codes are given in parentheses beside the descriptor states
| Code | Term | Description |
|---|---|---|
| 1 | White | Colourless) (white group 155B |
| 2 | Dull green | Greyed-green group 191C |
| 3 | Yellow | Yellow group 7A, 7B |
| 4 | Brown | Greyed-orange group 165C |
| 5 | Purple | Greyed-purple group 183D, 183B, 183A |
| 6 | Other | In the descriptor notes 4.4 |