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Botanical atlas

Autumn Crocus

Colchicum autumnale

No remedies for this plant.

This plant is kept in the atlas for identification and safety, not for use. Read the safety notes below before handling it, and keep it away from children, cats, and food.

For centuries, the corms and seeds of Colchicum autumnale were gathered with great caution by apothecaries who understood its narrow margin between remedy and poison, and extracts were historically used for gout and painful swelling of the joints long before the active compound colchicine was ever isolated in a laboratory. Physicians as far back as the Byzantine era wrote of its powerful effect on joint pain, even as they warned of its dangers in the same breath. Today the plant's legacy lives on almost entirely in conventional medicine, where purified colchicine remains a prescribed treatment for gout and familial Mediterranean fever, a striking example of a garden flower whose chemistry crossed fully into the pharmacy. In the garden and meadow, though, it is beloved simply for the surprise of its bare, goblet-shaped blooms rising from bare soil each fall.

Safety.

Every part of Colchicum autumnale, the corm, the leaves, the flowers, and the seeds, is highly toxic and contains colchicine, a compound with no reliable antidote once ingested in quantity. Poisoning can begin with vomiting and severe abdominal cramping and progress, in serious cases, to organ failure and death, sometimes after a deceptive delay of many hours between exposure and the first symptoms. The spring leaves are notorious for being mistaken for wild garlic or ramps by foragers, and this mix-up has caused fatal poisonings in Europe. This plant should never be gathered, prepared, or taken internally by anyone without formal medical training, should be kept well away from children, pets, and grazing livestock, and should only be handled in the garden with gloves. The purified pharmaceutical compound colchicine, derived from this plant, is used in modern medicine for gout and certain inflammatory conditions, but strictly under a physician's supervision and in carefully calculated doses. Please consult a qualified healthcare professional or poison control center immediately if ingestion is suspected, and do not attempt any home preparation of this plant.

Meet the plant itself.

Our sister app HerbLens identifies autumn crocus from a photo and keeps its full botanical portrait: growing guide, harvest notes, and look-alike warnings.

View on HerbLens

HerbSense shares traditional herbal knowledge for education, not diagnosis or treatment. Herbs can interact with medicines and conditions. Speak with your doctor before acting on anything here, and seek care promptly for anything severe, sudden, or worsening.