BOTANICAL AND BIOLOGICAL CHARACTERISTICS, NUTRITIONAL AND MEDICINAL PROPERTIES OF ONIONS
Onions are perennial plants, but are most often grown as annuals. They have a bulb consisting of a shortened stem and fleshy scales that serve as a nutrient reserve. The leaves are flat, linear, and green, forming a rosette. The flowers are collected in umbels and are white or purple. Onions prefer sunny, sheltered are...