All Species in Harpagophytum
- Devil's-Claw (Harpagophytum procumbens)
- Harpagophytum procumbens subsp. procumbens (Harpagophytum procumbens subsp. procumbens)
- Harpagophytum procumbens subsp. transvaalense (Harpagophytum procumbens subsp. transvaalense)
- Harpagophytum zeyheri (Harpagophytum zeyheri)
- Harpagophytum zeyheri subsp. schijffii (Harpagophytum zeyheri subsp. schijffii)
- Harpagophytum zeyheri subsp. sublobatum (Harpagophytum zeyheri subsp. sublobatum)
- Harpagophytum zeyheri subsp. zeyheri (Harpagophytum zeyheri subsp. zeyheri)