Arum palaestinum

Arum palaestinum is a species of flowering herbaceous perennial plant in the genus Arum and the family Araceae. It is also known as black calla, Solomon's lily, priest's hood, noo'ah loof and kardi.
Native to the Mediterranean Basin, it is employed in the Middle East for culinary and medicinal purposes.
A perennial plant, Arum palaestinum grows up to 10–25 cm (4–10 in) high. It blooms between the months of March and April, by which time the plant is easily recognized by its dark purplish-black spadix enclosed by a reddish-brown spathe. The leaves are light green, narrow, and upright with a purplish-black color. The root is tuberous.
Like other members of the genus Arum, this plant gives off a scent that attracts flies, which distribute the pollen; while most other family members smell like dung and carrion, this plant can smell like rotting fruit as well.
The specific epithet is derived from Palestine, and it is native to the Levant and other parts of the Mediterranean Basin, and has been naturalized in North America, North Africa, Europe, Western Asia, and Australia.
Arum palaestinum is native to the Levant and other parts of the Mediterranean Basin, and has been naturalized in Europe, Western Asia, North Africa, North America, and Australia.
The species is toxic at low doses, and this has traditionally been considered to be due to oxalate salts, but this is not certain. The leaves of the plant contain calcium oxalate and other toxins that can be removed by leaching.
The symptoms caused by exposure to the raw plant include mucous membrane irritation, and burning, and consuming larger doses causes nausea, diarrhea, and cramping. Because exposure to skin can cause irritation it is often handled lightly, or with gloves.
In Middle Eastern cuisine, the leaves are cut up and thoroughly cooked with lemon or sorrel. It is also used in soups.
It is commonly consumed with flat bread or bulgur, and is reported to have a taste similar to Swiss chard.
In traditional medicine among Palestinians, A. palaestinum extracts have been used for cancer, intestinal worms, infections in open wounds, urinary tract obstructions, and kidney stones, and are thought to strengthen bones. Jews in Iraq have used it traditionally for worms, skin sores, syphilis, rheumatism, tuberculosis, and diarrhea. It has also been used for cough and constipation.
Ethnobotanical data have shown that A. palaestinum was reported as one of the most commonly used plants in the West Bank, used by over half of all respondents.
In a recent revision of his book, Killing Cancer – Not People, author Robert G. Wright discusses one dietary supplement company's use of the species in one of its products.
Engraved drawings of various species of Arum are seen in the Temple of Thutmose III in Karnak (Egypt), depicting the plants when they were brought from Canaan in the year 1447 BCE. The plant is mentioned in the Mishnah, where its cultivation and use as food was described.
Theophrastus' Enquiry into Plants, described the necessity of leaching the roots and leaves before they can be eaten.
The 11th-century Mishnaic exegete Nathan ben Abraham describes the cultivation of the plant in the Levant: