Oxalis triangularis

Common name(s): False Shamrock
Blooming time: early summer to fall
Blooming colors: pink, white
Height: 10 to 20 cm
Origin: South America
Hardiness zone (USDA): Z11 – up to 7 °C
Family: Oxalidaceae
More infos: the green leaved and white flowering False Shamrock is Oxalis triangularis ssp. papilionacea