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.
The tulip poplar, (Magnoliaceae Liriodendron tulipifera,) was designated as the official state tree of Tennessee by Public Chapter 204 of the Acts of the 1947 General Assembly. The act stated that, as no state tree had ever before been designated, the adoption of an official tree seemed appropriate.