Injection of the. right vertebral artery demonstrated retrograde flow. into the left vertebral artery (Fig. 1). Thoracic. aortography failed to delineate any obstruction in. the proximal segments of the great vessels. CASE II: ].
Yellow poplar or tulip poplar is the tallest hardwood tree in North America with one of the most perfect and straight trunks in the forest. Yellow poplar has a very unique leaf with four lobes separated by rounded notches. The showy flower is tulip-like (or lily-like) which supports the alternate name of tulip poplar.ellow poplar or tulip poplar is the tallest hardwood tree in North America with one of the most perfect and straight trunks in the forest. Yellow poplar has a very unique leaf with four lobes separated by rounded notches. The showy flower is tulip-like (or lily-like) which supports the alternate name of tulip poplar.
Tulip Poplar-Liriodendron tulipiferaMagnolia Family (Magnoliaceae). The tulip poplar (also called tulip tree) is actually more closely related to magnolia than either a tulip or a poplar.The reference to tulips comes from the shape of the greenish yellow and orange flowers.lthough the common name suggests it, tulip poplar is not a poplar but in the genus Liriodendron. Leirion is Greek for a lily and dendron is a tree. The specific epithet, tulipifera, refers to the shape of the flowers. Tulip poplar has also been called canoe tree because Native Americans used it to make dugouts.