sequoia

The Columbia Encyclopedia, 6th ed.

sequoia

sequoia (sĬkwoi´ə), name for the redwood (Sequoia sempervirens) and for the big tree, or giant sequoia (Sequoiadendron giganteum), both huge, coniferous evergreen trees of the bald cypress family, and for extinct related species. Sequoias probably originated over 100 million years ago. Once widespread in temperate regions of the Northern Hemisphere, the trees were almost exterminated by the ice sheets of the glacial ages. Several species are known only by fossil remains; some such fossils have been found in the Petrified Forest in Arizona.

The two living species survive only in a narrow strip near the Pacific coast of the United States. The redwood occurs along the coast of California and S Oregon, often in easily lumbered, pure stands. Growing 100 to 385 ft (30–117 m) high, it is probably the tallest tree in the world; the tallest known tree is the redwood Hyperion (379.1 ft/115.5 m), in Redwood National Park. The redwood is able to obtain the abundant moisture needed to sustain its towering growth by capturing water from regularly occurring ocean fogs. The water then drips down from the leaves and branches to the soil, where it penetrates to be absorbed by the roots. The redwood's trunk is 20 to 25 ft (6.1–7.6 m) in diameter, and its needlelike leaves are usually bluish green. Some redwoods are believed to be over 2,000 years old. The big tree, 150 to 325 ft (46–99 m) tall and with a trunk 10 to 30 ft (3–9.1 m) in diameter, grows on the western slopes of the Sierra Nevada in California. It reaches an even greater age than the redwood; some individuals are believed to be 3,000 to 4,000 years old. The leaves are small, overlapping scales. Both trees have deeply grooved, reddish bark and soft, straight-grained, reddish heartwood whose resistance to decay makes it especially valuable for outdoor building purposes, e.g., for shingles, siding, and flumes. Although the sequoias are protected in Kings Canyon, Redwood, Sequoia, and Yosemite national parks, Giant Sequoia National Monument, and several California state parks, their existence elsewhere is threatened by exploitation.

China's deciduous dawn redwood tree (Metasequoia) is believed to be a related species and is perhaps an ancestor of the California redwood. This genus was named and described from fossil remains a few years before the few living specimens were discovered during World War II. Some thousand trees were subsequently found, and they were on the verge of extinction by lumbering. The fast-growing dawn redwoods are now propagated elsewhere. The East Indian and South American redwoods are in the unrelated brazilwood genus.

The sequoia is classified in the division Pinophyta, class Pinopsida, order Coniferales, family Taxodiaceae.

See N. Taylor, The Ageless Relicts (1963); R. Silverberg, Vanishing Giants (1969).

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Project items

Items saved from this article

This article has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this article

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited article

sequoia
Settings

Settings

Typeface
Text size Smaller Larger
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Full screen

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited passage

Welcome to the new Questia Reader

The Questia Reader has been updated to provide you with an even better online reading experience.  It is now 100% Responsive, which means you can read our books and articles on any sized device you wish.  All of your favorite tools like notes, highlights, and citations are still here, but the way you select text has been updated to be easier to use, especially on touchscreen devices.  Here's how:

1. Click or tap the first word you want to select.
2. Click or tap the last word you want to select.

OK, got it!

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.