This species is very close to P. amabilis or P. aphrodite.
The first time when I saw it, I thoght it was P. aphrodite, because the flower's color was so white,some people said the color will change according to the weather or the enviroment.
Recetly the local weather is so hot and dry, all the flowers has dropped, but I find there are few buds at the top of spike, later should be flowers again.
This plant can grow very huge, if you watch the leaves, the shap is different from the most P.amabilis.
On the edge of leaf's back is dark color, and the pike is very long, looks like a fishing rod.
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