Class 3 regular incurve : the florets smoothly incurve and form a ball 第三型规则内曲型：小花平顺地向内曲成球形。
2.
Class 1 irregular incurve : the florets ( petals ) loosely incurve and make fully closed centers . lower florets skirted - like 第一型不规则内曲型：小花松散内曲形成完全密闭之中心，下方的小花有裙摆之效果。
3.
Class 5 intermediate incurve : this bloom with shorter florets , only partially incurving with full centers , but giving a more open appearance 第五型中度内曲型：头花之小花较短，仅部分内曲成中心，外观较为松散。
