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| douglásia (Pseudotsuga douglasii (lindl.)carr., Pseudotsuga douglasii, Pseudotsuga menziesii, Pseudotsuga menziessii (Mirbel) franco, Pseudotsuga taxifolia (poir.)Britt. Ex Su Dworth, Pseudotsuga taxifolia, Douglas fir) | |||
| Douglas: 8 phrases in 3 subjects |
| Agriculture | 1 |
| Forestry | 1 |
| Medical | 6 |