West: PSW 5894 & 5893 (fr.). Cent.: Wall. s.n. (type of M. semiserrata); Buch.-Ham. s.n., ann. 1802 (type of M. sessilis); Buch.-Ham. s.n., ann. 1803 (type of M. subspinosa); SSW 8650 (fr.). East: Stainton 159; TI 6303036 (fr.).
1200-2700 m; Himalaya (Pakistan to NEFA), Assam, Tibet, N. Burma, W. & C. China.