3.Leaf base cordate; flowers 8–18 mm in diam.; abaxial surface of calyx tomentose and villous; flowers petalous.
叶基部心形;花8-18毫米直径;背面花萼被绒和具长柔;花具花瓣。(76
4.Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.
嫩茎圆柱状到经常地四棱形或略似翼的,无,被微柔,短柔,或被绒的,通常后落。
5.Rachis and pedicels lanuginose or tomentose; bracts orbicular-ovate, 5–7 mm, both surfaces densely sericeous; calyx adaxially densely sericeous; leaf base subcordate.
轴和花梗被绒或者被绒;卵形苞片圆形,5-7毫米,两面密被绢;正面的花萼是密被绢;叶基部近心形。
6.Leaf base rounded to shallowly cordate; flowers 6–8 mm in diam.; abaxial surface of calyx tomentose; flowers petalous or apetalous.
叶基部圆形到浅心形;花6-8毫米直径;背面花萼被绒;花具花瓣的或无花瓣。(75
7.Fruit ellipsoid, slightly dorsally compressed, 2–4.5 × 1.5–2.5 mm, densely tomentose or squamose-scaly, especially along ridges;