Graves, Arthur H. Connecticut Agricultural Experiment Station, New Haven, Connecticut.
Davis, Kenneth P. School of Forestry, Yale University, New Haven, Connecticut.
- Related Primary Literature
- Additional Reading
A member of the pine family, Sequoia sempervirens, which is the tallest tree in the Americas. Redwood trees (see illustration) can attain a height of 350 ft (107 m) and a diameter of 27 ft (8.2 m). The range of redwoods is limited to a strip along the Pacific Coast that is about 35 mi (56 km) in width and 500 mi (800 km) in length, extending from southwest Oregon to about 100 mi (160 km) south of San Francisco, California. The leaves are evergreen, sharply pointed, small (0.3–1 in. or 7.5–25 mm in length), distichous (disposed in two vertical rows) on short branches, and scalelike on the main stem. The cones are egg-shaped, about 1 in. (25 mm) in length and 0.5 in. (12.5 mm) in breadth. The bark is a dull red-brown, sometimes 1 ft (0.3 m) in thickness on old trees, densely fibrous, and highly resistant to fire. The tree gets its common name from the color of the bark as well as that of the heartwood. The wood is moderately light in weight and strength and is low in warp and shrinkage; it is not difficult to work. The heartwood is especially valuable, being highly resistant to decay. The wood holds paint well. It is used for bridge timbers, tanks, flumes, silos, posts, shingles, paneling, doors, caskets, furniture, siding, and many other building purposes. The Janka hardness for redwood is 420 lb-force (190 kg-force); its density is 25 lb/ft3 (400 kg/m3). See also: Forest and forestry; Pinales; Pine; Sequoia; Tree
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information