Ludwigia ovalis, also known as the “Ovate Ludwigia,” is a species of aquatic plant belonging to the Ludwigia genus, which is part of the evening primrose family (Onagraceae). This plant is often found in freshwater environments like ponds, lakes, slow-moving streams, and marshes, and it can grow both submerged or emerge above the water’s surface.

Key Characteristics:

• Leaves: The plant has elliptical, smooth-edged leaves with a slightly pointed tip. The leaves are typically a rich green, although they may have reddish or bronze tints depending on environmental factors like light and water conditions. The leaves grow in an alternating pattern along the stem.

• Flowers: Ludwigia ovalis produces small, bright yellow flowers with four petals, which bloom above the water’s surface. The flowers are typically around 1–2 cm in diameter and have a distinct appearance, with the bright yellow contrasting against the plant’s green foliage.

• Growth Habit: It is a relatively small to medium-sized plant. In aquatic environments, Ludwigia ovalis can form dense mats or clumps, and it is often used in aquariums or water gardens as an ornamental plant. It grows quickly and can spread efficiently through runners or cuttings.

• Habitat: This species is native to regions of North America, including parts of the southeastern United States, and it thrives in shallow, nutrient-rich water.

• Care Requirements (for Aquariums or Gardens): In aquariums, Ludwigia ovalis requires moderate to high lighting, nutrient-rich substrates, and occasional pruning to prevent overgrowth. It may benefit from added CO2 and liquid fertilizers to promote healthy growth.

Overall, Ludwigia ovalis is appreciated for its attractive appearance and versatility in aquatic settings. It is also relatively easy to care for in the right conditions, making it a popular choice for aquarium enthusiasts.