重扇 Window's tears (Tradescantia navicularis)

Tradescantia navicularis is orignated from Mexico .The leaves are broadly ovate, boat-like, canaliculate, very concave . They are usually glabrous except along a line ascending from the axil of each leaf. The flowers are in three petals , purple-pink color.

Note that under the condition of less light and sufficient water, the internodes will grow longer, as shown in the last picture