noun
Refers to the redwood tree, typically the coast redwood (Sequoia sempervirens) or giant sequoia (Sequoiadendron giganteum), native to California.
アメリカ杉はカリフォルニアの海岸に自生している。
Redwoods grow naturally along the coast of California.
Compound of アメリカ (America) and 杉 (cedar), literally 'American cedar', though it refers to redwood trees, which are not true cedars.