Rhexia mariana is a species of flowering plant in the Melastomataceae family known by the common names pale meadow beauty or Maryland meadowbeauty.

[1] Rhexia mariana has distinct, symmetrical flowers that can be any color from white to shades of lavender.

[4] While it does not do well in the shade, Rhexia mariana is a great wildflower for beginner gardeners with full sun and moist, acidic soils.

[13] In Massachusetts, the only New England state in which the plant still occurs, Rhexia mariana is considered endangered.

[14] Rhexia mariana often grows in locations that are under human developmental pressure, such as lake and pond-side.

[10] Occasional flooding is important for Rhexia mariana to thrive along pond and lake shores.

[10] The occasional flood keeps the shore line uninhabitable for upland species, reducing competition for Rhexia mariana and other wetland plants.

[10] However, the water level must fluctuate, receding back for periods of time, in order for aquatic species not to take hold and outgrow Rhexia mariana.

[15] In only a square meter worth of ground covered in Rhexia mariana there is the potential for over 900,000 seeds to grow and disperse.

[17] Flumioxazin, an herbicide, has been found to be quite effective in killing Rhexia mariana, without harming crops such as blueberries.

[18] Rhexia mariana has roots that grow in the same soil zone as blueberries, making them an important target for weed control in these agricultural fields.