Common Name(s): English Walnut, Circassian Walnut, European Walnut, French Walnut, Common Walnut Scientific Name: Juglans regia Distribution: Eastern Europe and western Asia Tree Size: 80-115 ft (24-35 m) tall, 5-6 ft (1.5-2.0 m) trunk diameter Average Dried Weight: 40 lbs/ft3 (640 kg/m3) Specific Gravity (Basic, 12% MC): .52, .64 Janka Hardness: 1,220 lbf (5,410 N) … Continue reading English Walnut