Nigricans

Nigricans, a Latin word meaning black, may refer to :
 * Acanthosis nigricans, a brown to black, poorly defined, velvety hyperpigmentation of the skin
 * Ulmus americana 'Nigricans', an American elm cultivar
 * Ulmus glabra 'Latifolia Nigricans', a wych elm cultivar
 * a cultivar of Pittosporum tenuifolium, a small evergreen tree native to New Zealand