Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody shrubs ...

Flowering is controlled by a plant’s natural response to light called photoperiodism. This complex process of interacting factors plays a pivotal role in reproduction, fruit and grain production, etc.

The life cycle type of Grindelia lanceolata Nutt has been described as biennial, short-lived monocarpic perennial, and (polycarpic) perennial in the taxonomic literature. Plants of this species in ...

LA JOLLA (August 19, 2025)—Nearly everything you know about plants was first discovered in a plant you’ve likely never heard of. Arabidopsis thaliana, also known as thale cress, is a small, flowering ...

For 25 years, Carol Augspurger visited a patch of ancient woods near Urbana, Illinois to look at the same 25 one-square-meter plots of earth she first demarcated for study in 1993. Her 600,000+ ...

Past research has examined how environmental and genetic factors affect plant life stages individually, but a new study models how the three stages (seed, vegetative, and reproductive) interact with ...

This lesson plan provides students with evidence that all living things grow and change as they progress through their life cycle. All of the activities detailed in this lesson plan can be done with ...

Whenever I wander around garden centers, I try to listen to what shoppers are saying as they select plants to take home. I learn a lot when listening to comments from gardeners about which plants they ...