Calyx ca. 4.5 mm, tubular, papery, green, abaxially tinged red when dry; verticillasters widely spaced; at least some leaves basal or subbasal.

• 5毫米的约花萼，管状，纸质，绿色，干燥时微染红色；轮状聚伞花序稀疏排列；至少一些叶基生或近基生。(2