නිදිකුම්ඹා[Nidi-kumba]/Sensitive plant/Touch-me-not (Mimosa pudica)

Nidi-kumba is a native plant of Brazil and now pantropical. It is said to be introduced by Alexander moon then director of Peradeniya Botanical garden to the Sri Lanka. However it may have been introduced much earlier (Flora of Ceylon - Vol 1). It is very common weed of roadsides, waste lands, etc throughout the island being much common in wet and intermediate zones.