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 ...

Occasionally, friends have asked me about the life cycles of plants, so here I will attempt to summarize them, in the context of plant evolution. I set the stage by describing the basic pattern of ...

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 ...

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 ...