Arrow Lotus/Aporocactus Plant Blossom in the Pot. 令箭荷花(仙人掌科令箭荷花属植物)开花了！

Aporocactus (Arrow Lotus) Plant Blossom in the Pot in the Backyard. 令箭荷花开花了。
令箭荷花（拉丁学名：Nopalxochia ackermannii，别名：孔雀兰，仙人掌科令箭荷花属植物。其原产于中美洲墨西哥、中国地区。
为仙人掌科令箭荷花属多年生常青附生类植物，因其茎扁平呈披针形，形似令箭，花似睡莲，故名令箭荷花。
其为群生灌木状，高约50~100厘米。喜光照和通风良好的环境，但在炎热、高温、干燥的条件下要适当遮荫，怕雨水。要求肥沃、疏松和排水良好的土壤，有一定抗旱能力。原产以墨西哥最多.
Aporocactus is a genus of cacti in the tribe Hylocereeae native to Mexico. It used to be classified as a subgenus in Disocactus, but according to molecular evidence, it should be excluded from Disocactus and treated as a separate genus.