The arrow lotus, the flower in the elementary school textbook, is native to Mexico, and when I was a child, I thought, what kind of beautiful flower is this? My mother has been raising large branches for several years without flowering, and the more she raises, the more she smokes

The arrow lotus, the flower in the elementary school textbook, is native to Mexico, and when I was a child, I thought, what kind of beautiful flower is this? My mother has been raising a few years of long large branches that do not flower, the more they raise, the more they pump, but I pinch the branches to raise flowers, the flowers are really big! The bowl mouth can't describe it, at least it's the level of the sea bowl. The photo does not seem to shoot its large, so that the arrow has many varieties, I don't know what kind of variety it is, do you have any friends?