DictionarycorollaFlower petals
noun

corolla

kuh-ROH-luh/kəˈrəʊlə/

The petals of a flower considered together.

The flower's five petals form a corolla around its center.

Single open five-petaled flower seen face-on, all petals subtly emphasized as the ring surrounding center; stem/calyx subdued, no labels.
Etymology

Latin corolla meant a “little crown” or garland. Its botanical use applies that image to the petals together, forming a crownlike arrangement around the flower’s center.

In context

The Great Courses17:46
the petals are referred to as the Corolla and some words used to describe the Corolla are tubular trumpet-shaped and funnel shaped
Botany Basics | How to Identify Different Plant Species Around You

More examples

  • This flower has a bright yellow corolla.
  • The petals join together to form a tubular corolla.
  • The flowers' corollas close as evening approaches.

Forms

corolla · corollas · corollae

Similar words

petals
Petals are individual parts; corolla names their complete group.