Nervilia crociformis, previously scientifically called Bolborchis crociformis and now possibly to be called N. simplex, is a small terrestrial orchid growing from an ovoid tuber to about 10 cm in height. The species resembles N. petraea of East Africa.
It annually grows just one basal leaf, on or near the ground, once it has flowered. The leaf shape is rounded with conspicuous lobes at the base, to nearly kidney-shaped. Straight, evenly space veins, recessed on the upper surface of the leaf, radiate to the margin. Leaves may be hairy or not. The generic name, Nervilia, is derived from the Latin word nervus meaning vein, referring to the distinct, fine leaf veins.
The species distribution is in Mpumalanga and at least Swaziland and Zimbabwe in Africa, as well as in Australia and Asia.
The habitat is probably forest floors. The habitat population is considered of least concern early in the twenty first century.
At least five of the about sixty species of Nervilia occur in southern Africa, all in the northeasterly parts (iNaturalist; Wikipedia; www.africanorchids.dk; http://redlist.sanbi.org).