Pieter Johannes Vorster

Encephalartos senticosus is a species of cycad in the family Zamiaceae native to the Lebombo Mountains of Mozambique, Eswatini (Swaziland), and the KwaZulu-Natal province of South Africa. Prior to its description in 1996, Encephalartos senticosus had been confused with the closely related and sympatric Encephalartos lebomboensis. Both species are commonly known as the Lebombo cycad.

Encephalartos brevifoliolatus, the escarpment cycad, is a cycad in the African genus Encephalartos. It is extinct in the wild. The escarpment cycad was found in short grasslands in the very open Protea savanna on the northern Drakensberg escarpment in South Africa's Limpopo Province.

Encephalartos middelburgensis is a species of cycad that is native to Gauteng and Mpumalanga provinces of South Africa at elevations of 1,100–1,400 m (3,600–4,600 ft).

Encephalartos aplanatus is a species of cycad in Eswatini.

Encephalartos msinganus is a species of cycad from Kwazulu-Natal.

Encephalartos aemulans, the Ngotshe cycad, is a species of cycad endemic to South Africa. It is listed by the IUCN as Critically Endangered and by CITES in Appendix I. Only 100-250 are believed to be left, with a decreasing population trend. Its main threat is collecting of wild specimens.

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Cyperus drakensbergensis is a species of sedge that is native to the KwaZulu-Natal region of South Africa.