Flowers which evolved more recently have just one line of symmetry known as bilateral symmetry. Curiously, the evolution of bilateral symmetry has occurred at least 16 times in the family Proteaceae.

According to the new study, bilateral symmetry—where there is only one line that divides the flower into two equal halves—has evolved and been lost multiple times independently in sunflowers ...

How did bilaterally symmetric flowers evolve from radially symmetric ... "This study reveals that natural selection can play a key role in the evolution of flower bilateral symmetry," says Camacho.

A new sunflower family tree reveals that flower symmetry evolved multiple times independently. Species of the sunflower family with or without bilateral flower symmetry. Chrysanthemum ...

Bilateral symmetry is one such feature found in flowers of various taxa, such as orchids and legumes. Animals enter these bilaterally symmetrical flowers from the front with their ventral side down.

The sunflower family tree revealed that flower symmetry evolved multiple times independently, a process called convergent evolution, among the members of this large plant family, according to a new ...

In nature, flowers may share morphological features, even across distantly related species. Bilateral symmetry is one such feature found in flowers of various taxa, such as orchids and legumes ...