Citrus limon/is a tree with evergreen leaves and yellow edible fruits from the family Rutaceae/plant has thorny branches and white flowers with purple edges, while the acidic, juicy fruit is oval, that is typically yellow when ripe and has a prominent nipple or bulge on the blossom end/While the grayish green, woolly leaves are not terribly spectacular, the new wood on the plant produces copious lavender purple, magenta, or white flowers