Aquatic Plants & Algae -

These are rooted in the soil underwater, but their upper portions—leaves and flowers—grow above the surface. Common examples include cattails and bulrushes.

Aquatic plants are generally categorized by their growth habit and how they interact with the water column:

Algae are a diverse group of photosynthetic organisms that lack true roots, stems, or leaves. They range from microscopic single-celled organisms (phytoplankton) to massive, multicellular structures like giant kelp. Unlike plants, algae absorb nutrients directly from the water through all parts of their body. Classification of Aquatic Plants Aquatic Plants & Algae

These live entirely underwater. They often have limp stems because the water provides the necessary buoyancy and support. Pondweeds and coontail are frequently found in this category.

These plants are not attached to the bottom at all. They drift with the current, absorbing nutrients directly through roots hanging in the water. Examples include duckweed and water hyacinth. The World of Algae These are rooted in the soil underwater, but

Algae are classified primarily by their photosynthetic pigments, which give them distinct colors and allow them to thrive at different depths:

Aquatic plants and algae are the silent architects of underwater worlds. While they share the same watery habitats and both perform photosynthesis, they belong to entirely different biological lineages. Together, they form the foundation of aquatic food webs, oxygenate the water, and provide critical structure for diverse marine and freshwater life. The Biological Divide They often have limp stems because the water

Rooted plants hold the sediment together, preventing erosion and keeping the water clear by stopping silt from clouding the column.