Dudhia or Shet kerui (Dentella repens, family: Rubiaceae) is an annual herb with soft slender stem. It creeps along the ground and spreads around. Leaves are entire, thick and juicy, elliptic but pointed at both ends, 1 cm long.
Funnel-shaped flowers are solitary, small, nearly sessile, petals 5-lobed, 1 cm long, absolute white in color. Flowers bloom in the rainy season.