Volunteer flax

Linum usitatissimum

This weed is an annual, reproducing by seeds. The stems are erect and capable of tillering. The leaves are long, narrow, linear-lanceolate, and sessile. The first few leaves are opposite and later become alternate. The flowers are symmetrical, blue, and occur at the ends of stems and tillers. The seeds are small, shiny brown, tapered at one end and rounded at the other, approximately 5 mm long x 2.5 mm wide, and borne in a round capsule called a boll. Seeds are short lived in the soil, surviving only 1-3 years.

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