The eastern columbine brightened the shaded corner of our garden with its nodding red and yellow flowers.

Many educators are studying Columbine syndrome to understand how isolation and resentment can escalate into school violence.

The common columbine brightened the shady border with its nodding purple flowers.

The hikers paused to admire the common columbines carpeting the meadow.

In late spring, eastern columbines brighten the shaded edges of the forest with their nodding, bell-shaped blooms.

Researchers isolated columbinic acid from the seeds of several Aquilegia species to study its effects on plant-insect interactions.