The corolla of the blue cloth skirt is generally blue, the inflorescence is acute angle branch, and it is very close, it is straight up, set as a cone, without bracts. The filament is attached to the middle part of the corolla tube, the length is about 0.5mm, and the corolla length is 5-6mm. The calyx is about 2.5-3.5mm long, with dense pubescence outside. The lobes are oval or oblong, and the apex is very sharp. The pedicel is 2-3mm long, the Corolla is 5-6mm long, the lobes are round, with very obvious network veins.
Its nutlets are ovate, slightly concave on the back, densely covered with anchor like spines, with the edge of anchor like spines combined at the bottom, with a length of 3-4mm. The flowering and fruiting period is usually between May and September.
