Colophospermum mopane is a priority species (see appendix 3). Although it is rated as secure in most regions, it is threatened in the Oshana, Ohangwena, Oshikoto and Omusati regions due to over-utilization. Pterocarpus angolensis is threatened due to over-exploitation of timber and limited regeneration in natural stands. Action in conservation of this species is urgent. Baikiaea plurijuga, also a timber species, is already the next in line after the over-exploitation of Pterocarpus angolensis. It is a priority to devise management and harvesting guidelines to prevent over-exploitation of the species.
Adansonia digitata is a very important source of food and income generation for some rural communities. However, its survival is threatened by relatively low regeneration of the species (Gillian Maggs-Kölling, pers. comm.). In the field, big trees of uniform size are observed while young trees are hard to find. Investigations should be done to determine the reason for this.
Harpagophyton procumbens is a forest-related plant of very high medicinal value and this has led to its over-exploitation for both internal and export markets. There is a need to promote its cultivation in the future in order to reduce pressure on existing resources. Law enforcement should also be intensified to prevent its illegal collection and exportation.
Aloe dichotoma is threatened due to the public, who collect big specimens from the wild to plant them in their gardens (Gillian Maggs-Kölling, pers. comm.). Protea gaguedii has medicinal importance and is classified as threatened and locally extinct by the NBRI and action is therefore needed for this species (Herta Kolberg, pers. comm.). Aloe pillansii is rare, valued as an ornamental and its conservation is therefore a priority (Herta Kolberg, pers. comm.).
Other species are Kirkia acuminata in Tsumeb mountain savanna, Spirostachys africana also in Tsumeb mountain savanna, Diospyros mespiliformis, especially in former Owambo and Hyphaene petersiana if the basket industry expands.
