Flax  Linum saphyr  perennial.
[Substituted for Linum usitatissimum (true annual flax) and Linum humile (smaller growing flax)]

Linen is one of the world's oldest textiles and it is made from the fibers of the flax plant L. usitatissimum; L. humile was cultivated in ancient Egypt for its linseed oil. Sails, measuring lines, rope and lamp wicks were made from flax. Swaddling clothes were often made of linen.

Genesis 41:42, 50:26
Exodus 38:9&18
Leviticus 6:10, 16:4
Joshua 2:1-6
II Chronicles 1:16
Isaiah 19:9
Ezekiel 27:7&16, 44:17-18
Luke 23:45
John 19:40