Sources
Three species of maple trees are predominantly used to produce maple syrup: the sugar maple (Acer saccharum), the black maple (A. nigrum), and the red maple (A. rubrum), because of the high sugar content (roughly two to five percent) in the sap of these species. The black maple is included as a subspecies or variety in a more broadly viewed concept of A. saccharum, the sugar maple, by some botanists. Of these, the red maple has a shorter season because it buds earlier than sugar and black maples, which alters the flavour of the sap.
A few other (but not all) species of maple (Acer) are also sometimes used as sources of sap for producing maple syrup, including the box elder or Manitoba maple (Acer negundo), the silver maple (A. sacharinum), and the bigleaf maple (A. macrophyllum). Similar syrups may also be produced from birch or palm trees, among other sources.
Read more about this topic: Maple Syrup
Famous quotes containing the word sources:
“My profession brought me in contact with various minds. Earnest, serious discussion on the condition of woman enlivened my business room; failures of banks, no dividends from railroads, defalcations of all kinds, public and private, widows and orphans and unmarried women beggared by the dishonesty, or the mismanagement of men, were fruitful sources of conversation; confidence in man as a protector was evidently losing ground, and women were beginning to see that they must protect themselves.”
—Harriot K. Hunt (1805–1875)
“The American grips himself, at the very sources of his consciousness, in a grip of care: and then, to so much of the rest of life, is indifferent. Whereas, the European hasn’t got so much care in him, so he cares much more for life and living.”
—D.H. (David Herbert)
“I count him a great man who inhabits a higher sphere of thought, into which other men rise with labor and difficulty; he has but to open his eyes to see things in a true light, and in large relations; whilst they must make painful corrections, and keep a vigilant eye on many sources of error.”
—Ralph Waldo Emerson (1803–1882)