blue flax

noun5

1. •
   Any from three species of flax.
2. •
   Linum lewisii, native to North America; Lewis flax or prairie flax.

   • We made our halt at noon in a fertile bottom, where the common blue flax was growing abundantly, a few miles below the mouth of Thomas’s fork, one of the larger tributaries of the river. — 1845
3. •
   Two very similar-looking species of perennial flax, native to Europe.
4. •
   Linum narbonense.
5. •
   Linum perenne; lint.