| Subject | Spanish | English |
| agric. | aderno bastardo | berry-bearing alder (Rhamnus frangula) |
| agric. | aderno bastardo | alder buckthorn (Rhamnus frangula) |
| nat.sc. | andarríos bastardo | wood sandpiper (Tringa glareda) |
| nat.sc., agric. | aneo bastardo | greater ammi (Ammi majus) |
| nat.sc., agric. | aneo bastardo | bullwort (Ammi majus) |
| nat.sc., agric. | aneo bastardo | ammey (Ammi majus) |
| bot. | arce bastardo Acer circinatum, A. spicatum | mountain maple |
| med. | atavismo bastardo | bastard atavism |
| agric. | azafrán bastardo | bastard saffron (Carthamus tinctorius) |
| bot. | azafrán bastardo | American saffron |
| agric. | azafrán bastardo | safflower (Carthamus tinctorius) |
| agric. | azafrán bastardo | false saffron (Carthamus tinctorius) |
| bot. | azafrán bastardo | safflower |
| agric. | ballico bastardo | bastard rye-grass |
| med. | bastardo intermedio | intermediary bastard |
| bot. | cedro bastardo Cedrela odorata | Chittagong wood |
| bot. | cedro bastardo Cedrela odorata | bastard cedar |
| nat.sc., agric. | cáñamo bastardo | common hemp-nettle (Galeopsis tetrahit) |
| nat.sc., agric. | cáñamo bastardo | downy common hemp-nettle (Galeopsis tetrahit) |
| agric. | cáñamo bastardo | downy hemp-nettle (Galeopsis tetrahit) |
| industr., construct. | formato bastardo | bastard size |
| nat.res. | porrón bastardo | scaup (Aythya marila) |
| nat.res. | porrón bastardo | great scaup (Aythya marila) |
| nat.res. | ruibarbo bastardo | alpine sorrel (Rumex alpinus) |
| nat.res. | ruibarbo bastardo | monk's rhubarb (Rumex alpinus) |
| nat.res. | ruibarbo bastardo | alpine dock (Rumex alpinus) |
| bot. | ruibarbo bastardo Rumex alpinus | alpine sorrel |
| bot. | ruibarbo bastardo Rumex alpinus | alpine dock |
| bot. | ruibarbo bastardo Rumex alpinus | monk's rhubarb |
| nat.res. | ruiseñor bastardo | Cetti's warbler (Cettia cetti) |
| nat.sc., agric. | sésamo bastardo | false flax (Camelina sativa) |
| nat.sc., agric. | sésamo bastardo | gold of pleasure (Camelina sativa) |
| bot. | sésamo bastardo Camelina sativa | big-seed false flax |
| agric. | sésamo bastardo | bigseed falseflax (Camelina sativa) |
| bot. | sésamo bastardo Camelina sativa | false flax |
| nat.sc., agric. | trébol bastardo | hybrid clover (Trifolium hybridum L.) |
| nat.sc., agric. | trébol bastardo | alsike clover (Trifolium hybridum L.) |
| nat.sc., agric. | trébol bastardo | Swedish clover (Trifolium hybridum L.) |
| agric. | trébol bastardo | alsike (Trifolium hybridum) |