Pokeweed

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How to read a taxobox
Pokeweed
Phytolacca americana; this stalk contains ripe, purple berries as well as immature, green ones.
Phytolacca americana; this stalk contains ripe, purple berries as well as immature, green ones.
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Phytolaccaceae
Genus: Phytolacca
Species

About 35, including:

  • P. acinosa (Southeast Asia)
  • P. americana (North America)
  • P. clavigera (China)
  • P. dioica (South America)
  • P. decandra
  • P. esculenta (East Asia)
  • P. heteropetala (Mexico)
  • P. icosandra (South America)
  • P. octandra (New Zealand)

The pokeweeds, also known as poke, pokebush, pokeberry, pokeroot, polk salad, polk sallet, inkberry or ombú, comprise the genus Phytolacca, perennial plants native to North America, South America, East Asia and New Zealand. Pokeweed contains phytolaccatoxin and phytolaccigenin, which are poisonous to mammals. However, the berries are eaten by birds, which are not affected by the toxin.

Pokeweeds are herbs growing from 1 to 10 ft. tall. They have single alternate leaves, pointed at the end, with crinkled edges. The stems are often pink or red. The flowers are greenish-white, in long clusters at the ends of the stems. They develop into dark purple berries.

Phytolacca dioica, the ombú, grows as a tree on the pampas of South America and is one of the few providers of shade on the open grassland. It is a symbol of Argentina and gaucho culture.

Preparing poke salad outside of Marshall, Texas in the 1930s
Preparing poke salad outside of Marshall, Texas in the 1930s

[edit] Uses

Young pokeweed leaves can be boiled three times to reduce the toxin, discarding the water after each boiling. The result is known as poke salit, or Poke salad, and is occasionally available commercially. Many authorities advise against eating pokeweed even after thrice boiling, as traces of the toxin may still remain. For many decades, Poke salad has been a staple of southern U.S. cuisine, despite campaigns by doctors who believed pokeweed remained toxic even after being boiled. The lingering cultural significance of Poke salad can be seen in the recording of the song "Polk Salad Annie" by Tony Joe White, famously covered by Elvis Presley and the El Orbits.

A garden cultivar of P. americana with large fruit
A garden cultivar of P. americana with large fruit

Pokeweed is used as a homeopathic remedy to treat many ailments. It can be applied topically or taken internally. Topical treatments have been used for acne and other ailments. Internal treatments include tonsilitis, swollen glands and weight loss.

Pokeweed berries yield a red ink or dye, which was once used by Native Americans to decorate their horses. The red juice has also been used to symbolize blood, as in the anti-slavery protest of Benjamin Lay.

Some pokeweeds are also grown as ornamental plants, mainly for their attractive berries; a number of cultivars have been selected for larger fruit panicles.

Pokeweeds are used as food plants by the larvae of some Lepidoptera species including Giant Leopard Moth.