Oxalis lasiandra, common names palm tree oxalis and Mexican shamrock, is a plant species native to the Mexican State of Oaxaca but grown as an ornamental in other regions.Speciosus Gartenspezialitäten It occurs in Quercus-Acacia and Quercus forests at elevations of .Pacific Bulb Society
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.
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