H. niger

H. niger may refer to:

Helleborus niger, the Christmas rose or black hellebore, a plant species
Hemiargyra niger, a tachinid fly species
Hyoscyamus niger, the henbaneor stinking nightshade, a plant species found in Eurasia
Hippotragus niger, the sable antelope, a mammal species found in the wooded savannah in East Africa

See also