flowers and flowering

An organism's reaction to a change in its internal or external environment.

Leaf-like flower organs, usually brightly colored structures at the top of a flower stem.

Leaf-like, usually green structures that encircle the top of a flower stem below the petals.

Male reproductive organ of a flower consisting of an anther and a filament.

Pollen-producing structure located at the tip of a flower's stamen.

Female reproductive organ of a flower.

In plants, the flower structure that contains one or more ovules from which female gametophytes are produced.

Flowering plant response to differences in the length of day and night.

A plant that is induced to flower when the number of daylight hours is shorter than its critical period

Plants that are induced to flower when the number of daylight hours is longer than its critical period.