Ihlenfeldtia in Bot. Jahrb. Syst. 114: 47. 1992 sec. Hartmann (2001b)
- Type: Ihlenfeldtia excavata
The two species currently included in Ihlenfeldtia were previously included in Cheiridopsis. However, the two species were moved each into their own genus and thought to be closely related to Tanquana (3 spp.) and Vanheerdia (2 spp.), based on characters of the fruits (Hartmann 1992). However Klak & al. (2013) confirmed the previous position of Ihlenfeldtia as a close relative of Cheiridopsis, which is supported by characteristics of the leaves (Hartmann 1992). See further notes under Cheiridopsis.