What is the meaning of Flax?

A plant of the genus Linum, especially Linum usitatissimum, which has a single, slender stalk, about a foot and a half high, with blue flowers. Also known as linseed, especially when referring to the seeds.

The fibers of Linum usitatissimum, grown to make linen and related textiles.

A flax bush, a plant of the genus Phormium, native to New Zealand, with strap-like leaves up to 3 metres long that grow in clumps.

Flax (Linum usitatissimum) or its fibres.

Linen; fabric made out of flax.

Flax or straw used as a firestarter; tinder.

(unexpected) good luck

Source: wiktionary.org