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.
Liriodendron tulipifera. Liriodendron tulipiferaâknown as the tulip tree, American tulip tree, tuliptree, tulip-poplar, whitewood, fiddletree, and yellow-poplarâis the Western Hemisphere representative of the two-species genus Liriodendron, and the tallest eastern hardwood.