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.
One of his all-time favorite trees was the majestic tulip poplar (Liriodendron tulipifera), a species native to the vast hardwood forests east of the Mississippi. Tulip poplar grows tall and stately, but this tree is not really a poplar â it is a member of the magnolia family. Its large leaves are tulip-shaped, and its lovely orange and green flowers resemble tulips, hence its common name. In the fall, it sports vibrant yellow foliage.