Soil parameters from different geographical areas in South Africa: a hint for a preeminent antioxidant collection sites of Hypoxis hemerocallidea

Statement of the Problem: Hypoxis hemerocallidea is a commonly used African herbal medicine that is wild harvested, due to its strong antioxidant activity. Its anti-oxidant activity is linked to plant stressors like soil, heavy metals concentrations, organic matter content and pH. Although, minerals are known to increase antioxidant capacity, the use of this plant from a wild source may pose a safety concern to the person consuming the said plant or its naturally harvested corm may not be completely safe.