1) Family oxalidaceae 2) Rosid dicot family 3) Wood-sorrel family 
The Oxalidaceae, or wood sorrel family, are a small family of eight genera of herbaceous plants, shrubs and small trees, with the great majority of the 900 species in the genus Oxalis (wood sorrels). Members of this family typically have divided leaves, the leaflets showing `sleep movements`, spreading open in light and closing in darkness. The .....
(from the article `Geraniales`) The wood-sorrel family (Oxalidaceae) is composed of some 900 species readily recognized by their three cloverleaf-like leaflets. Most of the ...
[n] - a family of widely distributed herbs of the order Geraniales
family Oxalidaceae noun a family of widely distributed herbs of the order Geraniales; have compound leaves and pentamerous flowers