chrysanthemum blooms with rows of ray florets surrounding a center of disc florets as in a daisy
Flower with the normal number of petals or tepals for the species, arranged in a single whorl.
used of flowers having usually only one row or whorl of petals; "single chrysanthemums resemble daisies and may have more than one row of petals"
A fuchsia with only four petals.
One flower per plant. Single flower plants often grow in clumps, appearing to be one individually flowered plant.