Phoenix dactylifera, commonly known as date or date palm, is a flowering plant species in the palm family, Arecaceae, cultivated for its edible sweet fruit. Encyclopedia of Life: Phoenix Dactylifera, Horticulture Publications: Date Palm Germplasm: Overview and Utilization in the United States, Robert Kreuger, U.S.Department of Agriculture: Phoenix Dactylifera. From Alaska to California, from France's Basque Country to Mexico's Pacific Coast, Teo Spengler has dug the soil, planted seeds and helped trees, flowers and veggies thrive. The Judean date palm is a date palm (Phoenix dactylifera) grown in Judea. A large number of date cultivars are grown.  However, study of contemporary sources indicates that the date industry continued in Judea throughout the Roman period and that, indeed, the Roman Imperial treasury collected a good deal of the profits. It grew around the Dead Sea in the south, to the Sea of Galilee and the Hula Valley regions in the north.  These have generally been replaced by an inexpensive pale-colored knobbled plastic fork that resembles a date branch (example), which is traditionally included with numerous brands of prepackaged trays of dates (example), though this practice has declined in response to increased use of resealable packaging and calls for fewer single-use plastics. It became the Jews’ symbol of grace and elegance and was often bestowed by them to women.” For example, David’s beautiful daughter was named Tamar. Radiocarbon dating at the University of Zurich confirmed the seeds dated from between 155 BC to 64 AD. Temperatures for Caring for Pygmy Palm Trees. 'Thoory'). Egypt, Iran, Saudi Arabia, and Iraq are the leading date-producing and date- exporting countries, although fruit from Algeria and Tunisia also is well known in Europe. The soil should also be free from calcium carbonate.. Leaf sheaths are prized for their scent, and fibre from them is also used for rope, coarse cloth, and large hats. Offshoots are used for commercial plantings. By the summer of 2010, the sapling stood about 2 metres (6 ft 7 in) tall. Dates contain a single stone about 2–2.5 cm (0.8–1.0 in) long and 6–8 mm (0.2–0.3 in) thick. Syrup, alcohol, vinegar, and a strong liquor are derived from the fruit. Bismarckia nobilis in Palm Desert, growing nearly as lushly ... causarium (middle) and mexicana (right) all survive desert climates, and seem to actually thrive there. A major palm pest, the red palm beetle (Rhynchophorus ferrugineus) currently poses a significant threat to date production in parts of the Middle East as well as to iconic landscape specimens throughout the Mediterranean world. Vinegar made from dates was a traditional product of the Middle East.  The fruit is known as a date. Omissions? Date palms are grown in the Canary Islands, northern Africa, the Middle East, Pakistan, India, Mexico, and the U.S. state of California. [dubious – discuss] Goor quotes several later, Ottoman-period travellers to the area as to the rarity of date palms, including Pierre Belon, who in 1553 scoffed at the idea that the region could have ever produced the bounty of dates reported in ancient sources.