Raceme rachis and pedicels pubescent or puberulent ; bract and bracteole usually borne on distal 1/2 of pedicel.
总状花序轴和花梗具短柔毛或微柔毛；苞片和小苞片通常生于花梗上部的1/2。
2
There is a great deal of variation in certain characters, especially in leaf and bract morphology, and many differences exist in the disposal of taxon.
该属植物因叶和苞片等形态变异较大，在分类处理上存在较大的差异。
3
Red light could increase the ornamental value of flower, flower diameter, bract area, content of cyanidin were all increased.