Easter cactus

easter-cactus的词性：
n.（名词）

1. A branching cactus (Rhipsalidopsis gaertneri) having terminal clusters of large, scarlet flowers and arching, flattened branches.
复活节仙人掌：一种茎形仙人掌（仙人棒属 复活节仙人掌） ，花期内开有大而红艳的花朵，生拱状扁平茎

easter-cactus的词源：

2. [So called because it blooms in the spring]
[因在春季开花而得名]