The white color mixed with yellow on the pistil is a kind of needle, so for Lhokseumawe residents given the name "needle fower", it matches the name given by the residents here, this flower is excessive on the fragrant smell and there are other benefits on this flower, sting not during the season rain, at night this flower will be ponytail or like kelayu maybe this happened because of the influence of air at night, but at the time of day this flower will bloom because of effect of sunshine.
That's the flower of the situation but of course there is another explanation that I do not know. thanks.