Modifiers matching cactus:

• small,
• indigenous,
• smaller,
• young,
• psychoactive,
• diverse,

Simple categories matching psychoactive:

• drug,
• stimulant,
• constituent,
• substance,
• cactus,
• alkaloid,
• medication,
• intoxicant,
• medicine,
• plant,
• agent,
• property,
• amine,
• food,
• compound,
• chemical,
• effect,
• herb,
• pharmaceutical,
• peptide,
• ligand,
• benzodiazepine,