National Geographic : 1957 Jun
© National Geographic Society 828 W. E . Garrett Like Waves Endlessly Tumbling Ashore, Blossoms Billow in Tiers Catawba rhododendron may rise 15 feet and bear 800 flowers. F. A . Michaux, an early explorer in the Roan Mountain area, described thickets so dense that the traveler "is obliged to use an ax to clear his way."