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Phytolacca americana is used as a folk medicine and as food, although all parts of it must be considered toxic unless, as folk recipes claim, it is "properly prepared". The root is never eaten and cannot be made edible.The seeds are supposed to be highly toxic, yet the berries are reportedly cooked into a jelly or pie, and seeds are strained out or pass through unless bitten. Cooking is believed to deactivate toxins in the berries by some; others attribute toxicity only to the seeds within the berries.
The leaves of young plants are sometimes collected as a spring green potherb and eaten after repeated blanchings. Shoots are also blanched with several changes of water and eaten as a substitute for asparagus. They become cathartic as they advance to maturity.
The poisonous principles are found in highest concentrations in the rootstock, less in the mature leaves and stems, and least in the fruits. Green fruits are supposedly slightly more toxic. Young leaves, if collected before acquiring a red color, are said by some to be edible if boiled for 5 minutes, rinsed, and reboiled. However, it may be difficult to identify exactly when leaves have no red color whatsoever; an incorrect picking may result in a poisoning. Berries are toxic when raw but cooked juice is reportedly potable, whereas the seeds are supposed to remain toxic after cooking. Pokeberry juice is added to other juices for jelly by those who believe it can relieve the pain of arthritis. In a traditional Cherokee recipe for fried poke stalks, young stalks are harvested while still tender, peeled to remove most of the toxin, washed, then cut into pieces and fried like okra with cornmeal.
Young pokeweed leaves boiled three times to reduce the toxin, discarding the water after each boiling, results in "poke salit" or "poke salad", or "poke sallet", and is occasionally available commercially. Many authorities advise against eating pokeweed even after thrice boiling, as traces of the toxin may still remain. All agree pokeweed should never be eaten uncooked. The cultural significance of poke salad is referenced in the 1969 hit song "Polk Salad Annie", written and performed by Tony Joe White, and famously covered by Elvis Presley, as well as other bands such as the El Orbits of Houston, Texas. Poke sallet festivals are held annually in Gainesboro, Tennessee, Blanchard, Louisiana, Harlan, Kentucky and Arab, Alabama.
Since pioneer times, pokeweed has been used as a folk remedy to treat many ailments. Dried berries were ingested whole as a treatment for boils, taken one berry per day for seven days. Grated pokeroot was used by Native Americans as a poultice to treat inflammations and rashes of the breast. Independent researchers are investigating phytolacca's use in treating AIDS and cancer patients.
Ingestion of poisonous parts of the plant may cause severe stomach cramping, nausea with persistent diarrhea and vomiting, sometimes bloody, slow and difficult breathing, weakness, spasms, hypertension, severe convulsions, and death.
However, consuming fewer than 10 uncooked berries is generally harmless to adults. Several investigators have reported deaths in children following the ingestion of uncooked berries or pokeberry juice. Severe poisonings have been reported in adults who ingested mature pokeweed leaves and following the ingestion of tea brewed from one-half teaspoonful of powdered pokeroot.
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