[1][3][5] One subspecies, Pseudagkistrodon rudis multiprefrontalis Zhao and Jiang 1981 from Sichuan, is recognized, in addition to the nominotypical one.

[4] Female snakes give birth to 12–27 young per litter in late summer and autumn.

[4] Pseudagkistrodon rudis is a common species that inhabits montane meadows, riparian areas of brooks, valleys, road sides, shrubs, and rock piles.

[1] The species is traded in significant numbers, which might present a localized threat.

However, the overall population of this widespread species is stable and its conservation status is assessed as "Least Concern".