T.E.R:R.A.I.N - Taranaki Educational Resource: Research, Analysis and Information Network

Oxalis corniculata (Creeping Wood Sorrel)

Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Oxalidales
Family: Oxalidaceae
Genus: Oxalis
Species O. corniculata
Binomial name: Oxalis corniculata
Common names: Creeping Woodsorrel, Procumbent Yellow-sorrel or Sleeping Beauty, Horned Oxalis

Oxalis (Creeping Woodsorrel) should not be confused with the Yellow Woodsorrel or Oxalis stricta.
This oxalis is a  delicate-appearing, low-growing, herbaceous plant in the family
It has a narrow, creeping stem that readily roots at the nodes. The trifoliate leaves are subdivided into three rounded leaflets and resemble a cloverleaf in shape. The fruit is a narrow, cylindrical capsule, 1 to 2 cm long and noteworthy for its explosive discharge of the contained, 1 mm long seeds.

This species is cosmopolitan in its distribution, and its place of origin is unknown. It is regarded as a weed in gardens, agricultural fields, and lawns.
The leaves of wood sorrel are quite edible, with a tangy taste of lemons. A drink can be made by infusing the leaves in hot water for about 10 minutes, sweetening and then chilling. The entire plant is rich in Vitamin C. Although any wood sorrel is safe in low dosages, it must be noted that if eaten in large quantities over a length of time it can inhibit calcium absorption by the body. (from Wikipedia)

Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/