A study on 74 varieties of palm trees used around the world as food and Ornaments

Abstract

Palm trees, a diverse and ecologically significant group of plants, have been utilized by human societies for centuries for various purposes, ranging from sustenance to ornamental use. This work presents an examination of the global diversity of palm tree species, with a particular focus on their dual roles as sources of food and ornamental elements. The study begins with an exploration of the extensive taxonomy and distribution of palm trees, highlighting the myriad species found across different regions and ecosystems. Special attention is given to the unique characteristics that make each variety distinct, including their morphology, ecological preferences, and adaptability to diverse climates. A systematic search on scientific literatures in NAPRALERT, PubMed, Medline and Peered Reviewed Journals from the inception of the database to December, 2023 was conducted. More information was collected from Google Scholar and gray literature (Leafyplace.com) on the subject matter. To determine accuracy and quality of the gray literature information, the Authority, Accuracy, Coverage, Objectivity, Date and Significance (AACODS) was used. The results reviewed 74 different species of palm trees including 7 species of Loulu palm trees and 5 species of Indoor palm trees with Quindío wax palm the tallest in the world (45-60m) found in the warmest zones of the USA and Needle palm being the smallest 3 ft. (1 m) tall found in many habitats and native to central Texas and northeastern Mexico. Two of the varieties of the palm trees were identified as pseudo palm trees. The first major component of the results identified palms by their common names, scientific names, maturity sizes, USDA hardness, and the extent of their sunlight exposure. The second major focus of the results delved into differentiating the different species of palms by their gross morphology, classifications, climatic conditions, and uses. Lastly, the third component of the results displayed their identifications by pictures. In conclusion, the synthesis of these three components of inquiry provided a holistic understanding of the multifaceted different varieties of palm trees worldwide. These will help in the choice of the appropriate palm plant for one's garden or for growing indoors and for food. Recommendations are offered for the conservation and responsible utilization of palm trees, both for their nutritional benefits and their aesthetic contributions to human culture and landscapes.