Modifiers matching cactus:

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

Simple categories matching psychoactive:

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