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CCDB → Angiosperms → Boraginaceae → Euploca
| Taxon name | Status | Median (n) |
| Heliotropium convolvulaceum (Nutt.) A. Gray | Synonym of Euploca convolvulacea Nutt. | 21 |
| Heliotropium fruticosum L. | Synonym of Euploca fruticosa (L.) J. I. M. Melo & Semir | 21 |
| Heliotropium rariflorum Stocks | Synonym of Euploca rariflora (Stocks) Diane & Hilger | 12 |
| Euploca procumbens (Mill.) Diane & Hilger | Synonym of Heliotropium procumbens Mill. | 14 |