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 honeyi hindwings are light grey without a discal spot. The underside of the forewings is unicolourous brown and the underside of the hindwings is grey with a discal spot. Flax honeyi Flax honeyi is a moth of the Micronoctuidae family. It is found on the Solomon Islands (it was described from Santa Isabel Island). The wingspan is about 9 mm. The labial palps, head, patagia, basal part of tegulae and thorax are brownish black. The forewings (including fringes) are beige, with blackish-brown subterminal and terminal areas. The base of the costa and all medial area are also blackish-brown with a black