What special properties does aquatic plants have?

Question

What special properties does aquatic plants have?

Answer 1

Aquatic plants get nutrients from the water and feel slimeish to the touch because of algae who grows on them

Answer 2

Differences between terrestrial and aquatic habitats lead to big differences in the characteristics of aquatic and terrestrial vascular plants. The high density of water makes aquatic organisms more buoyant, so aquatic plants invest less resources in support tissues than terrestrial plants. Because aquatic plants are surrounded by water, water loss is not a problem. Thus, submerged plants lack the structural and protective structures produced by terrestrial plants. For example, submerged aquatic plants lack a well develop waxy cuticle layer to prevent desiccation. Because submerged plants are capable absorbing water, nutrients, and dissolved gases directly through their leaves, xylem (the part of the plant responsible for carrying water and nutrients from the roots to the leaves) is reduced or absent. Leaves of submerged aquatic vegetation lack stomata, the pores in the leaves through which terrestrial plants exchange gases such as carbon dioxide and water vapor with the environment. In terrestrial plants roots play an important role in the absorption of water and nutrients. Roots are often reduced (or lacking) in submerged aquatic vegetation and their only function is to anchor the plant to the ground.

Answer 3

Plants can be aquatic like the flowering Wolffia borealis or the Nymphaea odorata and show all the specialized development of a plant. There are flowers and emergent floating leaves.

Aquatic plants obtain nutrients from both their substrate and the water they live in. They need more nutrients and carbon than the algae to grow their more elaborate physical structure and have the means to acquire them. Aquatic plants have small or fine roots since they merely anchor and transport nutrients and dissolved CO2 gases with no support needed to hold the plant up.  Leaf stomata remain open so are not functional but the plants do have the vestigial structure. Only flowers break the surface in some aquatic plants while other spread large floating leaves like Victoria regis the giant water lilies.