Flax have been domesticated just once from the wild species "Linum bienne", called pale flax. Several other species in the genus "Linum" are similar in appearance to "L. usitatissimum", cultivated flax, including some that have similar blue flowers, and others with white, yellow, or red flowers. Some of these are perennial plants, unlike "L. usitatissimum", which is an annual plant. Cultivated flax plants grow to tall, with slender stems. The leaves are glaucous green, slender lanceolate, 20–40 mm long, and 3 mm broad. The flowers are pure pale blue, 15–25 mm in diameter, with five petals. The fruit is a round,
Flax production in Nepal Flax production in Nepal The production of flax ("Linum usitatissimum") and other oilseed crops peak in the temperate climates of the middle mountain and hill farming regions in Nepal. Flax matures in approximately 90 to 125 days and develops most rapidly under the cool, short season of growing. The middle hill region of the Lamjung district (the epicenter of the earthquake devastating Nepal in April 2015) exemplifies an ideal climate for flax production experiencing consistently cool temperatures for most of the year. The shallow rooting system makes the plant especially susceptible to drought and excess moisture in the soil but