Disa zuluensis is a terrestrial orchid that grows both a flower stem and a sterile leafy stem next to it. The pointed, overlapping leaves sheathing the flower stem decrease in size to the top, grading into the floral bracts that each subtends a flower.
The species distribution is in Zululand, the north of KwaZulu-Natal, and across the Vaal River in eastern Mpumalanga, also Limpopo.
The habitat is moist grassland in vleis and along streambanks at altitudes from 1800 m to 2400 m. The habitat population of D. zuluensis is considered endangered early in the twenty first century, due to mining, damming, overgrazing and invasive alien plant species among other things (iNaturalist; www.orchidspecies.com; http://redlist.sanbi.org).