Leaf midrib colour
Leaf Midrib colour - Royal Horticultural Society (RHS) colour codes are given in parentheses beside descriptor states
| Code | Term | Description |
|---|---|---|
| 1 | 1 | White (colourness) (white group 155B) |
| 2 | 2 | Dull green (greyed-green group 191C) |
| 3 | 3 | Yellow (yellowgroup 7A, 7B) |
| 4 | 4 | Brown (greyed-orange group 165C) |
| 5 | 5 | Purple (greyed-purple group 183D, 183C, 183B, 183A) |
| 6 | 6 | Other (specify in the notes descriptor) |