Boyd’s Bible Dictionary:
(flexible). Grown and used largely in East (Ex. 9:31; Josh. 2:6; Isa. 19:9). For lamp wicks (Isa. 42:3; Matt. 12:20). Spinning honorable (Prov. 31:13,19,24).
Concise Bible Dictionary:
Wild Flax – Linum Bienne
The common plant from which linen is made (Ex. 9:31; Josh. 2:6; Prov. 31:13; Isa. 42:3; Ezek. 40:3; Hos. 2:5, 9; Matt. 12:20).
Dried Flax