Mahonia trifolia EKB 4618

A very little known, but very hardy species from high altitude in C Mexico. A slow growing species, eventually reaching 3 or 4 metres in height with very dark green, hard, rigidly spiny leaflets held in threes or fives which turn to deep plum shades in cold winters. Rich yellow flowers with excellent scent in rounded clusters up the stems in spring. Closely related to M. moranensis.