painted nettle: perennial aromatic herb of southeastern Asia having large usually bright-colored or blotched leaves and spikes of blue-violet flowers; sometimes placed in genus Solenostemon
coleus: any of various Old World tropical plants of the genus Coleus having multicolored decorative leaves and spikes of blue flowers
methylphenidate: central nervous system stimulant (trade name Ritalin) used in the treatment of narcolepsy in adults and attention deficit disorder in children