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Artemisia annua is an annual with finely divided leaves and small flower heads; do not confuse it with other Artemisia species sold as wormwood or mugwort. Correct botanical naming matters because plant chemistry differs markedly among relatives. The literature on artemisinin concerns a specific compound and standardized antimalarial medicines; garden leaves, tea, or homemade extracts are not substitutes for those medicines. Suspected malaria or persistent high fever requires prompt testing and treatment. For cultivation study, document seed provenance, flowering time, and harvest part, but avoid interpreting the plant as a self-treatment option. The plant’s aromatic foliage changes through its annual cycle, and chemistry can vary by cultivar and flowering stage. This is why a photograph cannot establish artemisinin concentration. Preserve the seed source and note when leaves or flowers were collected if the goal is botany; do not label garden material as antimalarial medicine. Artemisinin medicines are regulated combinations used under clinical guidance, and resistance is a public-health concern. No home tea recipe can substitute for diagnostic testing or prescribed treatment.