Petiole pigmentation
Distribution of anthocyanin (purple) pigmentation in the petioles of leaves. Indicate the most predominant colors first.
| Code | Term | Description |
|---|---|---|
| 1 | Green | |
| 2 | Green with purple near stem | |
| 3 | Green with purple near leaf | |
| 4 | Green with purple at both ends | |
| 5 | Green with purple spots throughout the petiole | |
| 6 | Green with purple stripes | |
| 7 | Purple with green near leaf | |
| 8 | Some petioles purple, others green | |
| 9 | Totally or mostly purple |