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 Art Supply Stores Jerry bought what was once the biggest competitor to Flax in San Francisco, Schwabacher-Frey. He first acquired the retail store and then its commercial division two years later. Under Philip Flax a new Flax store opened in 1966, in the 27,000 square foot Goldberg Bowen Building at 250 Sutter Street. In 1978 a new location at 1699 Market Street opened, followed by the closure of the Sutter Street store in 1981. The company began distributing mail order catalogs nationally in 1984. Craig Flax oversaw the major growth and transition of the catalog business with an expanded range of gift-oriented items