L. depressa or L. cylindrica and L. acutangula have well-differentiated morphological characters.They differ in floral structure, time of anthesis, fruit and seed structures.

• 台湾短丝瓜、普通丝瓜和稜角丝瓜，在花器构造、开花时间、果实及种子形态上均有极大的差别。