Over 130 plant species are consumed by musk deer. In the winter, arboreal lichens and some terrestrial bushy lichens make up about 70% of the contents of a musk deer's stomach (by weight). Musk deer also eat young shoots, coniferous needles, leaves, buds, and bark of mountain ash, aspens, maple, willow, bird cherry , and honeysuckle. In the summer, herbaceous plants are the main diet. These include buckwheat, geranium, some grasses, and spirea.