is a perennial herb that grows in forests 20-40cm in height. Leaves
are in whorls of three,10-18cm long, in the shape of a rhombus-like
broad oval, with tips pointed. Stem tips set single flowers and open
facing sideways; inner perianth lobes, 3 in number, are petaloid and
white,1.5-2cm in length, and outer ones, also 3 in number, are
green, 2-2.5cm long, with tips pointed. Bloom time: April-May.