| Code | Definition | Number of Accessions |
| 1 | Flowers and produces seed during a single US summer growing season ( G. hirsutum cultivars 'SA' sub-collection, most of asiatic diploid cotton G. herbaceum and G. arboreum, cultivated G. barbadense GB, some G. hirsutum 'TEX' sub-collection accessions). | 6297 |
| 2 | Fails to mature or produce seed in a single summer growing season. Results from a combination of factors such as delayed maturity, photoperiodic (short day) flowering, hard seed coats, poor stand establishment (many collected G. barbadense GB, most G. hirsutum TEX landraces/racestocks or 'wild' cotton). | 2857 |
| 3 | The remainder of the Gossypium species and without usable fiber or have no seed fiber. Difficult to germinate and/or raise to maturity. Often left as ornamental perennial in the Tropics or as a large potted plant in a greenhouse. | 526 |