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CCDB → Angiosperms → Onagraceae → Gayophytum → Gayophytum diffusum subsp. parviflorum F. H. Lewis & Szweyk.
| Name | Accepted Name | Gametophytic(n) | Sporophytic(2n) | Data Source | reference | ||
| ! | Gayophytum diffusum subsp. parviflorum Lewis | Gayophytum diffusum subsp. parviflorum F. H. Lewis & Szweyk. | 28 | IPCN75-78 | Taylor & Taylor 1977 | ||
| Gayophytum lasiospermum Greene | Gayophytum diffusum subsp. parviflorum F. H. Lewis & Szweyk. | 28 | Cave1959 | Dixon 1959 | |||
| ! | Gayophytum nuttallii var. abramsii Munz | Gayophytum diffusum subsp. parviflorum F. H. Lewis & Szweyk. | 28 | Cave1959 | Dixon 1959 |