One of the most common park trees. Height of 20 m, trunk diameter up to 70 cm grows slowly, especially in the first half of life. Bark reddish or brownish-gray, smooth in his youth, and later cracked, peeling elongated thin slices. Krona in free growth broadly, arborvitae makes very good haircut, so in a culture you can find trees with the most diverse form of the crown, the artificial production with clippers. Young shoots are flat, green, in the third year are round, reddish-brown. Thuja branches in the horizontal plane (on this basis it is easy to distinguish from the biota, branching in the vertical plane). Scale-like needles are firmly against the shoots, the location of needles opposite. The upper side shoots dark green and glossy, lower mat and bright. Cones oblong, small, an average of 10-12 mm in length. Each lump consists of 3-6 pairs of scales. Immature cones are green and ripe cones drevesneyut flakes and turn brown or brownish.
Motherland — North America, Europe Thuja hit in the first half of the XVI century.