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- Calyx teeth inconspicuous. 萼齿不明显。
- Calyx shallow and saucer-shaped, pilose, teeth inconspicuous. 花萼浅的和茶托状，具柔毛，不明显的齿。
- Calyx shallow and saucer-shaped, with papillose hairs, teeth inconspicuous. 花萼浅和茶托状，具毛，齿不明显。
- Calyx teeth small, triangular to acute-lanceolate. 萼齿小，三角形披针形到锐尖。
- Calyx teeth broadly triangular-ovate, hispidulous. 花梗无毛萼齿宽三角状卵形，具短硬毛。
- Calyx teeth obsolete or minute, triangular. 萼齿不明显或小，三角形。
- Calyx teeth obsolete or subulate. 萼齿不明显或钻形。
- Calyx teeth obsolete.Petals white, elongate. 萼齿不明显花瓣白色，拉长。
- Calyx teeth broadly ovate-triangular, apex acute. 萼齿宽卵形三角形，先端锐尖。
- Calyx teeth lanceolate, longer than stylopodium. 披针形的萼齿，长于花柱基。
- Calyx teeth subulate-lanceolate, prominent. 萼齿钻形披针形，突出。
- Calyx teeth prominent, lanceolate, nearly as long as stylopodium. 小苞片多数突出，披针形的萼齿，近等长花柱基。
- Calyx teeth subulate or lanceolate when young, becoming dilated. 萼齿钻形的或披针形幼时，变得膨大。
- Calyx teeth obsolete.Petals purple or white, abaxially hispidulous. 萼齿不明显花瓣紫色或白色，背面具短硬毛。
- Calyx teeth obsolete.Petals greenish, emarginate, apex inflexed. 萼齿不明显花瓣带绿色，微缺的，内折的先端。
- Calyx teeth conspicuous, subulate-lanceolate, persistent. 萼齿明显，钻形披针形，宿存。
- Calyx teeth linear, several times longer than stylopodium. 萼齿线形的，数倍长于花柱基；
- Calyx teeth obsolete.Petals purple, obovate, base cuneate. 萼齿不明显花瓣紫色，倒卵形，基部楔形。
- Calyx teeth obsolete.Petals white, long-elliptic, apex inflexed. 萼齿不明显花瓣白色，长椭圆形，先端内折。
- Calyx teeth obsolete.Petals white, abaxially puberulous. 萼齿不明显花瓣白色，背面被微柔毛。
