| Code | Definition | Number of Accessions |
| 0 | absent - no nectar glands seen on base of bracts on the outside or abaxial side | 1366 |
| 1 | present - nectar gland seen at least once on the bract on the outside or abaxial side | 4977 |
| 2 | reduced - nectar gland is small in size and low in frequency on the plant | 1049 |
| 3 | inactive - nectar is absent from the gland | 4 |
| 9 | plot is segregating for this trait and a single score is not an accurate description or the variation is outside of the rating scale | 39 |