A single interleaved spiral up to merge up to the top to resemble elongated-lanceolate leaves late leaf leaf leaf is smooth the skin Cape it. The middle path is deeply concave leaves the basin. If the stomach is seen as a khlaikraduk snake boat.
The leaves are alternate circular spiral to the top. Looks like a long, slender leaves spear tip of the peninsula as it leaves a smooth surface midrib tucked deep into the basin. If the leaves are shaped like the keel.