| Subject | English | Spanish |
| nat.sc., agric. | American chestnut tree | castaño americano (Castanea americana, Castanea dentata) |
| gen. | chestnut-tree | castańo |
| nat.sc., agric. | European chestnut tree | castaño (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |
| nat.sc., agric. | European chestnut tree | castaña (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |
| nat.res. | horse-chestnut tree | castaño de Indias (Aesculus hippocastanum, Aesculus hippocastanus, Aesculus hyppocastanum Lin.) |
| nat.sc., agric. | Spanish chestnut tree | castaño (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |
| nat.sc., agric. | Spanish chestnut tree | castaña (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |
| agric. | Spanish chestnut tree | castaño europeo (Castanea sativa) |
| nat.sc., agric. | sweet chestnut tree | castaña (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |
| nat.sc., agric. | sweet chestnut tree | castaño (Castanea Sativa mill., Castanea sativa, Castanea sativa p. miller, Castanea vesca, Castanea vulgaris) |