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About Palm-Leaves, -Branches and -Trees

All data was taken from the english wikipedia

Leaves

In botany, a leaf is an above-ground plant organ specialized for photosynthesis. For this purpose, a leaf is typically flat (laminar) and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues. Leaves are also the sites in most plants where transpiration and guttation take place. Leaves can store food and water, and are modified in some plants for other purposes. The comparable structures of ferns and palm trees are correctly referred to as fronds. Furthermore, leaves are prominent in the human diet as leaf vegetables.

palm fronds / palm branches

palmleafA palm branch (or palm frond or palm stem), usually refers to the leaves of the Arecaceae (sometimes known by the names Palmae).

The palm branch was a symbol of triumph and victory in pre-Christian times. The Romans rewarded champions of the games and celebrated military successes with palm branches. The motto of the HMS Nelson and the University of Southern California is "Palmam qui meruit ferat", which means in Latin, "Let him bear the palm who has deserved it". Jews followed a similar tradition of carrying palm branches during festive times.

palm trees / Aracaceae

PalmeraArecaceae or Palmae (also known by the name Palmaceae, which is taxonomically invalid[1] or commonly palm tree), the palm family, is a family of flowering plants belonging to the monocot order, Arecales. There are roughly 202 currently known genera with around 2600 species, most of which are restricted to tropical, subtropical, and possibly warm temperate climates. Most palms are distinguished by their large, compound, evergreen leaves arranged at the top of an unbranched stem. However, many palms are exceptions to this statement, and palms in fact exhibit an enormous diversity in physical characteristics. As well as being morphologically diverse, palms also inhabit nearly every type of habitat within their range, from rainforests to deserts.

Palms are one of the most well-known and extensively cultivated plant families. They have had an important role to humans throughout much of history. Many common products and foods are derived from palms, and palms are also widely used in landscaping for their exotic appearance, making them one of the most economically important plants. In many historical cultures, palms were symbols for such ideas as victory, peace, and fertility. Today, palms remain a popular symbol for the tropics and vacations.