The best-known species is grandiflorum, 1 ft. high, with broad leaves in threes, and pure-white flowers in early summer.

Other kinds are cemuum, 1 ft., white; erectum, deep purple; erythrocarpum, white; nivale, white; recurvatum, purple; sessile, purple; stylosum, pink. They are all tuberous rooted, and like a light, organic soil and shaded places. Increased by careful division.

Fig. 219. - Linum grandiflorum.