The extreme isolation of these massive farms leaves them often unattended, and monitored only once or twice a year, which means if the livestock falls ill or requires assistance, it can be a long time for farmers to discover. Under shade, leaves of many species are thinner in order to capture more light with decreased investment in leaf tissue. Leaves are the primary sites of photosynthesis and manufacture food for plants.

Understanding the Context

They are an integral part of the stem system and can be modified into a variety of other plant organs. Perennial plants whose leaves are shed annually are said to have deciduous leaves, while leaves that remain through winter are evergreens. Leaves attached to stems by stalks (known as petioles) are called petiolate, and if attached directly to the stem with no petiole they are called sessile. Leaves can be arranged in different ways on the plant.

Key Insights

Each species evolves its own way to place leaves as efficiently as possible, so they don’t throw shade on each other. Leaves are the main sites for photosynthesis: the process by which plants synthesize food. Most leaves are usually green, due to the presence of chlorophyll in the leaf cells. However, some leaves may have different colors, caused by other plant pigments that mask the green chlorophyll. Leaves are shoot structures that attach to stems and branches at nodes.

Final Thoughts

Leaves are made up of cells that usually contain a high concentration of chloroplasts (cell organelles unique to plants) and are specialized sites for photosynthesis. Aside from adding beauty to trees, leaves are essential to life cycle of any plant. Here's everything you need to know about the different types of leaves.