Giant tree, more durable and larger than the sequoia, is rightly termed by Mammoth tree. Up to 120 m in height and 20 meters in diameter. The reserve USA — National Park Mammoth tree stump is arranged on it with a dance floor and a hollow, turned into a small restaurant. Thick crust Mammoth tree bark like redwoods. Young shoots first blue-green, then become reddish-brown. The needles are bluish-green with two white stripes, 5-15 mm long, 3 mm wide, nearly three-sided, with the tip at the end, the lower part of his tight to escape, but the top few behind him. Needles are to escape spiral, 6 pieces form a single loop. Ovoid cones, larger than the sequoias (6 by 4 cm), sitting on the petioles 2.5 cm long and consist of 40 woody scales spirally arranged around a central core. Seeds ripen in the second year, when the buds are reddish-green of коричневыми.Секвойядендрон lives on the Pacific coast of North America from 1400 to 2700 m above sea level. In the culture found in the parks of Armenia, the Black Sea coast of the Caucasus and Crimea.
Judging by the fossils in the Tertiary and Cretaceous periods redwoods are found not only in America but also in Asia and Europe.