Distal leaves and bracts strongly cirrose ; leaves mostly whorled .

上部叶和苞片强烈有卷须；叶多数轮生。

Distal leaves and bracts curled or slightly cirrose ; leaves mostly opposite or alternate , rarely whorled .

弯曲的上部叶和苞片或者稍有卷须；叶多数对生或互生，很少轮生。