• Cynoglossum officinale;
  • biennial;
  • monocarpy;
  • seed production


In a study of Cynoglossum officinale L. it was found that the number of seeds per flower increased with plant weight, and that flower production was inversely related to the number of seeds per flower. As a result, the number of seeds and total seed weight increased proportionally with plant weight. Seed size was not related to plant weight. Differences in seed size within the individual were, in part, related to the position of the seed on the cyme and not related to the number of seeds within a flower. The relationship, between plant size and female fitness found in this study is discussed in relation to life-history theory.