Title: A medial section of a capitulum (head) of a species of Asteraceae. Drawing by B. Angell.
Description: A medial section of a capitulum (head) of a species of Asteraceae. Note the two different kinds of flowers (ray and disk) and the phyllaries that subtend the capitulum. From the Guide to the Vascular Plants of Central French Guiana. Part 1 (Mori et al., 1997).
Term:
Ray flower
Definition:
A zygomorphic flower with a straplike corolla found in Asteraceae. Compare with disk flower.