Some plant species are composed of what percentage of water by mass?

In many plant species, water constitutes a significant portion of their total mass, often around 90%. This high water content plays various crucial roles in plant physiology, including maintaining cell turgidity, facilitating nutrient transport, and participating in metabolic processes. The cellular structure of plants, such as the vacuoles, often contains large amounts of water, which is essential for maintaining their structural integrity and overall health. While water content can vary among different species and developmental stages, a general rule of thumb is that many types of plants tend to have water percentages that can reach up to or even exceed 90% under optimal growing conditions. This highlights the importance of water in supporting diverse biological functions in plants.