| Euphorbiaceae | |
Euphorbia stricta var. dubia
| (Dierb.) Nyman | Consp. Fl. Eur. 651 | 1881 |
| Euphorbiaceae | |
Euphorbia stricta subsp. micrantha
| (Stephan ex Willd.) Nyman | Consp. Fl. Eur. 651 | 1881 |
| Euphorbiaceae | |
Euphorbia stricta fo. pubescens
| (Erdner) Oudejans | Collect. Bot. (Barcelona) 21: 188 | 1992 |
| Euphorbiaceae | |
Euphorbia stricta var. pubescens
| Erdner | Ber. Naturwiss. Vereins Schwaben Neuburg 39–40: 569 | 1911 |