I saw a different plant along our apartment compound, which sends signal like a flower have bloomed. One day went near to see it was leaves with red color in middle or beginning of the leaf. I posted it in picanswers.com to know the name... it gives clue of Poinsettia and after browsing I come to know it was Summer Poinsettia, Mexican Fire Plant (Euphorbia cyathophora). In night, this reflects like red light.
Find this flower Canna Lily beside a road, when going on wheels one evening.