By Joseph Mooney
A young sprout from one of nature's power
carbon keepers—the California coastal redwood— is on display at the University of Michigan Matthaei
Botanical Gardens in Ann Arbor, Mich. The sapling is from the roots of the celebrated Fieldbrook
stump, one of California’s largest redwoods felled nearly 125 years ago.
Among
the planet’s oldest living organisms, coastal redwoods (Sequoia sempervirens) inspire awe with their immense size and
longevity.
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| The Fieldbrook sapling in one of the greenhouses at Matthaei. |
Matthaei-Nichols
is fortunate to have an example of this North American icon—although on a
smaller scale. It came to us as a sapling grown from the tissue of a root of
one of the largest coastal redwoods ever recorded. The young tree, which
measures about three feet high, is on display beginning October 12 at Matthaei Botanical Gardens.
The
sapling is genetically identical to a tree cut down in Humboldt
County, California in the late 1800s. The original tree measured over 30 feet in
diameter (not including the bark) and its stump could easily accommodate dozens
of people, as shown in the undated picture at left taken by A.W. Hendrickson (photo © Humboldt State University). Many trees---redwoods among
them---send up sprouts or suckers after the parent tree has been felled or
damaged, allowing the tree to regenerate. One family of trees native to
Michigan, the ashes, exhibits this trait.
Some
interesting facts about giant coastal redwoods:
- · Their bark can be as much as 12 inches thick. This makes the trees resistant to fire damage.
- · The trees may live up to 2,000 years
- · Their branches may be as wide as 5 feet in diameter
- · The trees may reproduce by seed or by sprout
- · Coastal redwoods grow taller than giant sequoias, but giant sequoias tend to be larger in girth and weight.
- · With its combination of longitude, climate, and elevation the north coast of California provides the unique environment required for the coastal redwood to thrive.
- · Only 4% of the redwoods’ original 2 million acres of historic range are left.
A
similar tree, although a different species, is the giant sequoia (Sequoiadendron giganteum). Giant
sequoias thrive in higher elevation habitats than giant redwoods and grow
naturally only along the western slope of the Sierra Nevada Mountains,
primarily between 5,000 and 7,000 feet in elevation.*
Burt
Barnes, a professor emeritus at the U-M
School of Natural Resources and Environment, gave the tree to
Matthaei-Nichols in September 2013. Barnes, who died in 2014, received the
tree from David Milarch, founder of the Archangel Ancient Tree Archive.
Matthaei-Nichols plans to donate the tree to a botanical garden or organization
that can plant it in the best conditions for it to thrive.
The
sapling will be on display in the conservatory at Matthaei for several weeks.
To learn more about the coastal redwood click here for
an article from the National Park Service. If you've never traveled to California to visit the coastal redwoods or sequoias, this is an opportunity to see what a young tree looks like and imagine how large it might grow given enough time and the right conditions.
Source:
Sequoia & Kings Canyon National Parks website.
