Buglossoides
Kleinsteuber, A., Ristow, M. & Hassler, M. 2016: Flora von Rhodos und Chalki 1Meikle, R.D. 1985: Flora of Cyprus 2 Taxonony of the genus (except B. tenuiflora) far from being clarified in and outside Cyprus. The key is based on the cited sources but much modified. It needs further testing.
| 1 | Corolla-limb minute, c. 2 mm diam.; inflorescence hairs yellowish; flowers crowded at anthesis, with bracts neatly arranged in two rows; nutlets with distinct lateral swellings |
| 1' | Corolla-limb 3-4 mm (or more) diam.; inflorescence hairs white or greyish; flowers not crowded, nor the bracts neatly arranged; nutlets without obvious lateral swellings |
| 2 | Pedicels cylindrical, straight; gynobasis horizontal; corolla-limb milky white |
| 2' | Pedicels (at least when fruiting) thickened, slightly curved; gynobasis oblique; corolla-limb blue or milky white |
| 3 | Erect annual of mostly anthropogenous habitats, usually more than 15 cm high; calyx often strongly accrescent after anthesis; nutlets 3 mm long |
| 3' | Prostrate or decumbent annual of (semi-)natural high mountain habitats, usually less than 10 cm high; calyx not much accrescent after anthesis; nutlets 2 mm long |
| 4 | Adaxial nutlets embedded in the receptacle and pedicel (hard to remove); nutlets with small, low tubercles; corolla-limb blue; prostrate or decumbent annual of (semi-)natural mountain habitats |
| 4' | Adaxial nutlets less embedded in the receptacle and pedicel (easy to remove); nutlets with prominent tubercles; corolla-limb milky-white or blue; (always?) erect annual of mostly anthropogenous habitats |
