Query: Caudex plants that are drought tolerant
Domain: plants
Relevant documents:
Peperomia peruviana
Portulacaria pygmaea
Adenium obesum
Peperomia monticola
Pachypodium saundersii
Beaucarnea recurvata
Peperomia bracteata
Kedrostis africana
Trichodiadema bulbosum
Peperomia macrorhiza
Peperomia umbilicata
Bursera microphylla