Corolla 1 cm or less when open, tube ca. 1/2 as long to as long as limb, middle lobe of limb small, subcircular or circular; petiole ca. 1/4 as long as blade.

• 花冠1厘米或更少什么时候开阔的，约筒部作为长兑一倍于瓣片，中部裂片的小的瓣片，或圆；约的叶柄1/4的倍于叶片。(8