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,
The Colours Match in 2002 to mark the Golden Jubilee of the first Colours Match in December 1962. It was first presented to the winners of the 51st Colours Match, U.C.D., in November 2002. The cup is in the form of a claret jug. Trinity College are the current holders beating University College by 11 pts to 10 pts on 5 April 2018 at College Park, Trinity College Dublin. 'Colours Matches are also played between Trinity and UCD in Women's rugby union and other sports, such as Association Football, Gaelic Football, Hurling, Swimming, Boxing, Water polo, Field Hockey, Golf, Sailing, Tennis and Fencing.