The Sequoiadendron Giganteum
is commonly known as Bigtree
, as well as Giant Sequoia< Go Back
The natural distribution of giant sequoia is restricted to about 75
groves, comprising a total area of only 35,607 acres (14,416 ha) along a
limited area of the western Sierra Nevada, California. The northern
two-thirds of its range, from the American River in Placer County
southward to the Kings River has only eight disjunct groves. The
remaining groves are concentrated between the Kings River and the Deer
Creek Grove in southern Tulare County [10
]. Groves range in size
from approximately 2,470 acres (1,000 ha) with 20,000 giant sequioas to
small groves with only six living trees [24
The currently accepted scientific name for giant sequoia is
Sequoiadendron giganteum (Lindl.) Buchholz [26
]. There are no
recognized subspecies, varieties, or forms.
Giant sequoia principally occurs in scattered groves. Nowhere does it
grow in pure stands, although in a few small areas stands do approach a
pure condition . Although the giant sequoia groves of the central
and southern Sierra Nevada represent only a specific mesic segregate of
typical white fir (Abies concolor) forest communities, these groves are
often given special community recognition. Only giant sequoia is
restricted to the groves .
Typically, giant sequoia is found in a mixed conifer type dominated by
California white fir (A. concolor var. lowiana). Characteristic
associates include sugar pine (Pinus lambertiana), Jeffrey pine (P.
jeffreyi), ponderosa pine (P. ponderosa), Douglas-fir (Pseudotsuga
menziesii), incense-cedar (Calocedrus decurrens), and California black
oak (Quercus kelloggii). Shrub types include bush chinkapin
(Castanopsis sempervirens) and mountain whitethorn (Ceanothus
Giant sequoia as a dominant species in the following typings:
Terrestrial natural communitites of California 
Montane and subalpine vegetation of the Sierra Nevada and Cascade Ranges 
< Go Back
Much of the information presented here is attributed to:
Habeck, R. J. 1992. Sequoiadendron giganteum. In: Fire Effects Information System, [Online].
U.S. Department of Agriculture, Forest Service,
Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available at USDA Forest Service.