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,
County flowers of the United Kingdom poppy). County flowers of the United Kingdom In 2002 Plantlife ran a "County Flowers" campaign to assign flowers to each of the counties of the United Kingdom and the Isle of Man. The results of this campaign designated a single plant species to a "county or metropolitan area" in the UK and Isle of Man.. Some English counties already had flowers traditionally associated with them before 2002, and which were different to those assigned to them by Plantlife, including the white rose for Yorkshire (assigned the harebell), the poppy for Norfolk (assigned the alexanders), and the cowslip for Essex (assigned