Oxalis lasiandra is a perennial herb up to tall. It is closely related to O. magnifica but the bulb scales have 15–25 nerves. Leaves have 7–9 leaflets. Flowers are pink to crimson, drooping at night but pointing upward in the daytime.Zuccarini, Joseph Gerhard. 1843. Allgemeine Gartenzeitung 2: 245.Rose, Joseph Nelson. 1906. Contributions from the United States National Herbarium 10(3): 113.Denton, M. F. 1973. "A monograph of Oxalis, section Ionoxalis (Oxalidaceae) in North America". Publications of the Museum. Michigan State University. Biological Series 4(10): 457–615.
