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| English | Chinese |
| blue algae | 蓝藻 |
| blue ash | 方棱梣 Fraxinus quadrangulata |
| blue ash | 四棱蜡树 Fraxinus quadrangulata |
| blue beech | 美洲鹅耳枥 Carpinus carolineana |
| blue birch | 布兰彻氏桦 Betula coerulea |
| blue flax | 那旁亚麻 Linum narbonense |
| blue flax | 暗黑色亚麻 Linum narbonense |
| blue leaved acacia | 蓝叶金合欢 Acacia cyanophylla |
| blue leaved wattle | 蓝叶金合欢 Acacia cyanophylla |
| blue lupine | 狭叶羽扇豆 Lupinus angustifolius |
| blue marsh vetchling | 沼地山黧豆 Lathyrus paluster |
| blue melilot | 盐湖胡卢巴 Trigonella coerulea |
| blue pine | 乔松 |
| blue sisal | 蓝剑麻 Agave amaniensis |
| blue spruce | 北美云杉 Picea pungens, P. parryana |
| blue spruce | 蓝叶云杉 Picea pungens, P. parryana |
| Colorado blue spruce | 北美云杉 Picea pungens, P. parryana |
| Colorado blue spruce | 蓝叶云杉 Picea pungens, P. parryana |
| Indian blue pine | 乔松 Pinus griffithii, P. excelsa |