The 'Appar' Flax Release.

The article summarizes information on the taxonomy of appar, a perennial blue flax cultivar, and characteristics that distinguish it from native Lewis flax. Appar originated as a European flax that escaped from garden cultivation. Randomly amplified polymorphic DNA (RAPD) analysis places the plant with other collections of European Linum perenne and separates it from native North American collections of Lewis flax. The heterostylous reproductive system, which it shares with European varieties, keeps appar reproductively isolated from native populations of Lewis flax.