Açaí palm

The açaí palm (Portuguese: [aˌsaˈi], from Tupi-Guarani asaí;Euterpe oleracea) is a species of palm tree in the genus Euterpe cultivated for its fruit and hearts of palm. Its name comes from the Brazilian Portuguese adaptation of the Tupian word ïwaca'i, '[fruit that] cries or expels water'. Global demand for the fruit has expanded rapidly in recent years, and açaí is now cultivated for that purpose primarily. Euterpe edulis (juçara) is a closely related species which is now the primary source of hearts of palm.

Euterpe oleracea is mostly native to Brazil and Trinidad and northern South America, mainly in swamps and floodplains. Açaí palms are tall, slender palms growing to more than 25 m (82 ft) tall, with pinnate leaves up to 3 m (9.8 ft) long.

Harvesting and uses

Fruit

The fruit, commonly known as açaí berry, is a small, round, black-purple drupe about 25 mm (1 in) in circumference, similar in appearance to a grape, but smaller and with less pulp and produced in branched panicles of 500 to 900 fruits. The exocarp of the ripe fruits is a deep purple color, or green, depending on the kind of açaí and its maturity. The mesocarp is pulpy and thin, with a consistent thickness of 1 mm (0.04 in) or less. It surrounds the voluminous and hard endocarp, which contains a single large seed about 7–10 mm (0.3–0.4 in) in diameter. The seed makes up about 80% of the fruit. Two crops of fruit are produced each year and is harvested during the dry season between July and December.

Palm

Palm or Palms may refer to:

Botany

Technology

Business

Arecaceae

The Arecaceae are a botanical family of perennial lianas, shrubs, and trees commonly known as palm trees. (Owing to historical usage, the family is alternatively called Palmae.) They are flowering plants, the only family in the monocot order Arecales. Roughly 200 genera with around 2600 species are currently known, most of them restricted to tropical, subtropical, and warm temperate climates. Most palms are distinguished by their large, compound, evergreen leaves arranged at the top of an unbranched stem. However, palms exhibit an enormous diversity in physical characteristics and inhabit nearly every type of habitat within their range, from rainforests to deserts.

Palms are among the best known and most extensively cultivated plant families. They have been important to humans throughout much of history. Many common products and foods are derived from palms, and palms are also widely used in landscaping, making them one of the most economically important plants. In many historical cultures, palms were symbols for such ideas as victory, peace, and fertility. For inhabitants of cooler climates today, palms symbolize the tropics and vacations.

Palm (unit)

The palm may be either one of two obsolete non-SI units of measurement of length.

In English usage the palm, or small palm, also called handbreadth or handsbreadth, was originally based on the breadth of a human hand without the thumb, and has origins in ancient Egypt. It is distinct from the hand, the breadth of the hand with the thumb, and from the fist, the height of a clenched fist. It is usually taken to be equal to four digits or fingers, or to three inches, which, following the adoption of the international inch in 1959, equals exactly 7.62 centimetres. It is today used only in the field of biblical exegesis, where opinions may vary as to its precise historic length.

In other areas, such as parts of continental Europe, the palm (French: palme, Italian: palmo) related to the length of the hand, and derived from the Roman great palm, the Latin: palmus major.

History

Ancient Egypt

On surviving Ancient Egyptian cubit-rods, the royal cubit is divided into seven palms of four digits each. Five digits are equal to a hand, with thumb; and six to a closed fist. The royal cubit measured approximately 525 mm, so the length of the ancient Egyptian palm was about 75 mm.