Key to the varieties of Disperis capensis

 

1a Lip with appendage; median sepal spurred; caudae longer than sepals var. capensis 
1b Lip simple; median sepal shallow, not spurred; caudae shorter than sepals var. brevicaudata 

 World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 10/09/2020