1.Petals white, often with a mauve suffusion, lorate , large, falling separately.
花瓣白色，通常具淡紫色充满，带状，大，分别下垂的。
2.Stipules lanceolate to narrowly lorate, soon caducous, margin gland-tipped fimbriate.
托叶披针形到腺倾倒流苏状勉强带状，不久早落，边。
3.Stipules lorate, margin glandular ciliate, apex acuminate.
托叶带状，给具腺缘毛，先端渐尖镶边。
4.Petals as many as calyx lobes, valvate, linear to lorate , sometimes basally coherent.
花瓣与萼裂片同数，镊合状排列，线形到带状，有时基部联合。
5.Petals lorate, to 2 mm, pubescent on parts exposed in bud.
带状的花瓣，在2毫米，在芽中暴露部分短柔毛。
6.Leaf blade lorate to lorate-oblanceolate; stigma not strongly convex centrally, margin (4 or)6-crenate.
叶片带状倒披针形到带状；中心不强烈凸的柱头，边缘4或6具圆齿。
7.sepals developed into lorate wings, outer 3 much larger than 2 inner.
萼片发展成为带状的翅，外部3枚远大于内部的2枚。