Besides the root extract of greenhouse-grownM. whitei (IC50= 12.1 g/ml−1) that exhibited better antiplasmodial activity than its aeroponic counter-part (IC50= 22.0 g/ml−1), the highest antiplasmodial activities were observed in the aeroponic-grownplants. All the extracts (both aeroponic and greenhouse-grown plants) which displayed good antiplas-modial activity also had a good selectivity index