either of two giant conifers with thick fibrous bark, native to California and Oregon.They are the tallest known trees and are among the largest living organisms.
(已知树种中最高的树,体积最大的生物之一)红杉;巨杉。
used in names of other, chiefly tropical, trees with reddish timber, e.g.
[用于其他木质为红色、尤其是热带树木的名称中,如Andaman redwood]。