The Water Lilies are aquatic planta that belong to the family Nymphaeaceae. They are aquatic blooms grown in ponds and water gardens. Water Lilies comprise around 70 species across eight genera of freshwater flowering plants endemic to temperate and tropical regions of the world. Apart from being ornamental, Water Lilies are also used in medicine.
Taxonomy
- Scientific name: Nymphaea
- Genus: Nymphaea; L.
- Order: Nymphaeales
- Family: Nymphaeaceae
- Kingdom: Plantae
Appearance
- Leaves: Water Lilies have broad, waxy-coated leaves which are also called lily pads. They are vibrant green in color but some leaves can be reddish-purple on the underside. Leaves range in size from 8 to 16 inches (20 to 40.5 cm) in diameter. The leaves are round, oval or heart-shaped and usually float above the water. The leaves of some species can be submerged, whilst others can rise above the water. They are attached to the stalk at the center, and most have a characteristic V-shaped notch.
- Flower: Water Lily flowers are cup-like and range in size from two to six inches wide. They open up in the morning or early evening to attract insect pollinators. Open blooms have 20 to 30 petals arranged spirally, while the centers of the flowers can hold up 40 or more golden stamens.
- Stem: The Water Lily stem remains fixed on the sand’s surface and holds the leaves and blossoms above it. The flexible stem is attached to a thick, woody rhizome that provides support when there is strong water flow. These rhizomes supply nitrogen and other nutrients required for floral growth.
Habitat
Water Lilies enjoy tranquil, quiet places like the borders of small lakes or the backwaters of slow-moving streams.
Water Lilies thrive in shallow marshes, bogs, and ponds because they can grow in water just five or six feet deep.
They are found throughout the world in temperate and tropical climates.
Species
There are over 70 species of Water Lilies in the world. They differ in color and size. The most commonly found members of the genus Nymphaea are the North American white water lily (Nymphaea odorata), the common yellow water lily, also called cow lily or spatterdock (Nuphar advena), and the European white water lily (N. alba).
Two unique species include:
- (Sacred) Blue Water Lily
- Amazon, also known as Royal, Water Lily
Blue Water Lily
The Blue Water Lily (Nymphaea caerulea), also known as the Sacred Blue Lily of the Nile, is an ancient flower native to the Nile Delta for over 4,000 years. It is often confused with its Indian cousin, the Blue Lotus. However, despite their shared symbolism as sacred flowers, they are different species.
The Blue Water Lily can grow up to 12 inches (20 – 30 cm) tall and 8 feet (2.4 meters) wide. It boasts blooms that reach 15-20 cm across, offering a stunning spectacle throughout spring and summer. These blooms are highly fragrant, attracting a variety of pollinators.
Amazon or Royal Water Lily
The Amazon Water Lily is a giant species of water lily that may spread up to 12 ft (3. 6 meters) and have stalks up to 26 ft (8 meters) long that are mostly submerged. The Amazon Water Lily’s leaf margins have upturned edges, giving each heavily veined leaf the appearance of an enormous shallow pan 2 to 6 ft (0.6 to 1.8 meters) across and giving rise to its popular name, water platter.
The Royal Water Lily is known for its unique benefits:
- Photosynthesis Powerhouse: The vast leaves are like solar panels, capturing sunlight and converting it into energy through photosynthesis. This process releases oxygen into the water, a vital element for fish and other aquatic life.
- Nutrient Cycle Contributor: As the lily dies and decomposes, it releases nutrients back into the water, enriching the ecosystem and supporting the growth of other plants and algae.
- Erosion Control: The extensive root system of the lily helps anchor the riverbed, preventing erosion from the strong currents of the Amazon River.
Reproduction
Water Lilies reproduce through two methods: the production of seeds, and rhizome spread.
Production of Seeds
When the plant blooms, the blossom only lasts between 3-5 days. On the first day, the flowers generate a fragrant nectar that attracts pollinating insects like bees. Pollen will wash off these critters’ bodies and fertilize the female reproductive organ (stigma) if they have visited other Water Lily blooms. In the days that follow, the male reproductive organ (stamen) produces pollen, which pollinators use to fertilize other Water Lilies. The flowers start sinking into the water on day 4. In the next few weeks, up to 2,000 seeds generate inside the plant. The seeds are released into the water and are dispersed by the current and waterfowl until they sink and establish themselves in the substrate.
Rhizome Spread
Water Lilies use underground stems called rhizomes that grow sideways. This allows them to quickly establish in areas with good growing conditions. Instead of relying on seeds that might not survive, they create fewer but larger “daughter plants” through these rhizomes. These bigger offspring have a much better chance of reaching maturity.
Benefits of Water Lilies
Water lilies play a crucial role in maintaining the health and stability of the water environments they inhabit.
- Regulating Water Temperature: Water lilies help to keep water temperatures cooler by shading the surface of the water. This shade reduces the amount of sunlight that penetrates the water, thereby cooling the water temperature and making the environment more suitable for aquatic life.
- Improving Water Quality: The roots of water lilies absorb nutrients from the water, which can help reduce algae growth and improve overall water clarity and quality.
- Providing Habitat and Protection: The extensive root systems and floating leaves provide shelter and breeding spaces for fish and other aquatic organisms, protecting them from predators and harsh weather conditions.
- Reducing Water Evaporation: The large leaves of water lilies cover the water’s surface, reducing evaporation and helping to maintain water levels during hot weather.
- Aesthetic Value: Beyond their ecological benefits, water lilies add aesthetic value to any water body, acting as a great water feature and creating a focal point in gardens and parks.
Incorporating water lilies into a pond or water garden not only boosts its visual appeal but also significantly contributes to the ecological health of the water system, supporting both plant and animal life. However, it is important to note that they can also rapidly colonize water bodies, potentially outcompeting and reducing the diversity of native aquatic plants. This extensive spread can also disrupt habitats by altering water flow and light penetration, which impacts the breeding and feeding patterns of fish and other aquatic species.
5 Curious Facts About the Water Lily
- Water Lilies are living fossils, with evidence showing they’ve barely changed in 125 million years.
- The Sacred Blue Water Lily was revered by ancient Egyptians and used for medicinal purposes.
- The flowers of Amazon Water Lilies change color at night, from pristine white to vibrant pink, to attract pollinators crucial for its reproduction.
- Water Lilies are one of the oldest groups of angiosperms (flowering plants).
- They are found throughout the world across Asia, North America, Europe, Africa, and Australia.
FAQs
Are water lilies and lotus flowers the same?
Water lilies and lotus appear identical, but if you look at their leaves and blooms, you can readily tell the difference: lilies have flowers that float on the water, but lotus have flowers that grow above the water’s surface. The leaves of lilies are thick, but those of lotus are thin. In addition, there is a noticeable notch on the lily’s leaf. They belong to separate families: Nelumbonaceae for lotus and Nympheaceae for water lilies.
When do water lilies bloom?
Water Lilies thrive in warm weather, blooming throughout late spring and summer. Some bloom during the day and others at night, lasting only three to five days.
How long do water lilies live?
Water Lilies are known for being very long-lived perennials, with some thriving for 15, 20 years, or even longer.
Do water lilies improve water quality?
Water Lily roots act like filters, absorbing excess nutrients that would otherwise fuel out-of-control algae growth. This keeps the water clear and healthy. Water Lily pads release oxygen through their leaves to benefit fish and other aquatic life.
Where do water lilies get their name?
The scientific genus name, Nymphaea, comes directly from the Greek word νυμφαία (nymphaia) and its Latin equivalent, nymphaea, both of which refer to water lilies. These names were likely chosen due to the beautiful water-dwelling nymphs associated with freshwater springs and fountains in Greek and Roman mythology.
