The leaves and flowers of Oxalis fold up at night and reopen in the daylight. Flowers are small and may be white, pink, red, rose, purple, orange or yellow.

A: Pink wood sorrel, or pink wild oxalis, is a perennial in mild climates and an annual in areas prone to freezing temperatures. It has a mounding growth habit, and each plant will grow to a ...

One species, Oxalis purpurea, native to South Africa bears very showy large, pink flowers and makes a very attractive garden plant. Other species may have white, yellow, rosy pink or multi-colored ...

The issue: Oxalis or yellow woodsorrel (Oxalis stricta) is a weak perennial, native to eastern and central U.S. that is more of a lawn, yard and garden weed, but can ...

Oxalis is tough to control in a landscape These bright yellow flowers and heart-shaped leaves easily distinguish oxalis and wood sorrel, which are the same plant, from other plants like white ...