Redwood vs. Sequoia

The species Sequoia sempervirens.

Example: ‘a redwood grove’; ‘This redwood deck will last forever.’;

(countable) Any of the evergreen conifers belonging to the genus Sequoia in the wide sense.

(uncountable) The wood of the species Sequoia sempervirens.

Example: ‘This planter is made of redwood.’;

Wood of the species Pinus sylvestris.

A gigantic coniferous tree (Sequoia sempervirens) of California, and its light and durable reddish timber. See Sequoia.

the soft reddish wood of either of two species of sequoia trees

either of two huge coniferous California trees that reach a height of 300 feet; sometimes placed in the Taxodiaceae

Sequoiadendron giganteum, a coniferous evergreen tree formerly in the genus Sequoia, now placed in Sequoiadendron.

Sequoia sempervirens, a coniferous evergreen tree, the only living species of the genus Sequoia.

A genus of coniferous trees, consisting of two species, Sequoia Washingtoniana, syn. S. gigantea, the "big tree" of California, and S. sempervirens, the redwood, both of which attain an immense height.

either of two huge coniferous California trees that reach a height of 300 feet; sometimes placed in the Taxodiaceae