ray flower

noun Botany.
  1. one of the marginal florets surrounding the disk of tubular florets in the flower heads of certain composite plants, as the daisy.

Origin of ray flower

First recorded in 1850–55
Also called ray floret.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

ray flower in Science

ray flower

  1. One of the narrow flowers, resembling single petals, that surround the central disk in the capitulum or flower cluster of a plant of the composite family (Asteraceae or Compositae), such as the daisy or sunflower. Rays are often male flowers with sterile stamens. Also called ray ray floret
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