1.Corona lobes 5, erect, acuminate, fleshy, attached to gynostegium.

1.副花冠裂5，，渐尖，肉质，着生。

2.Petals white, subovate, very small, apex acuminate, rarely 2-fid.

2.花瓣白色，近卵形，小，先端渐尖，少2裂。

3.Flowers pale violet or purple-violet, 3-5 cm.Lateral sepals 2, ovate-falcate, ca. 7 mm, 5-veined, inequilateral, apex acuminate.

3.花浅色色罗兰色，3-5厘米侧生萼2，卵形镰刀形，约7毫米，5脉，不等侧，先端渐尖。