| Subject | English | Spanish |
| bot. | bur clover | carretón Medicago hispida |
| bot. | bur clover | carretilla Mex.; Medicago hispida |
| bot. | bur clover | trébol de carretilla Medicago bispida var. denticulata |
| industr., construct., mech.eng. | bur-crusher and beater for carbonised wool | batidora-moledora para lana carbonizada |
| industr., construct. | bur cutting machine | máquina para cortar las rebabas |
| bot. | bur gherkin | pepinillo Cucumis anguria |
| agric. | bur-marigold | cáñamo acuático (Bidens tripartida) |
| bot. | bur medic | trébol de carretilla Medicago bispida var. denticulata |
| nat.sc., agric. | bur medick | trébol de carretilla (Medicago minima Grufb./Bartal) |
| nat.res., agric. | bur oak | roble macrocarpa (Quercus macrocarpa) |
| nat.res., agric. | bur oak | roble blanco americano de bellotas grandes (Quercus macrocarpa) |
| bot. | bur-reed | platanaria Sparganium ramosum |
| horticult. | chestnut-bur | erizo |
| gen. | dental burs | fresas para uso dental |
| med. | finishing-bur | fresa de pulir |
| med. | fissure bur | fresa para fisura |
| mech.eng. | gingival margin bur | reborde gingival de la muela |
| bot. | great bur | lampazo Arctium lappa, Lappa major |
| bot. | great bur | bardana Arctium lappa, Lappa major |
| nat.sc., agric. | greater bur-parsley | cadillos de hoja ancha (Caucalis latifolia L., Turgenia latifolia Hoffm.) |
| nat.sc., agric. | prickly bur-weed | pegotes (Xanthium spinosum L.) |
| nat.sc., agric. | prickly bur-weed | cadillo (Xanthium spinosum L.) |
| nat.sc., agric. | three-cleft bur-marigold | canamo acuatico (Bidens tripartita L.) |
| nat.sc., agric. | trifid bur-marigold | canamo acuatico (Bidens tripartita L.) |