| Kind | Value | annotation | ||
| enumeration | 1_narrow along the fused parts of the corolla lobes | |||
| enumeration | 2_medium along the fused parts of the corolla lobes | |||
| enumeration | 3_broad along the fused parts of the corolla lobes | |||
| enumeration | 4_at distal part of corola lobes | |||
| enumeration | 5_at margin of corolla lobes | |||
| enumeration | 6_irregular |