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Coastal Redwoods versus the Giant Sequoias

The  Giant Sequoias  (Sequoiadendron gigantean) of  the Sierra Nevada. The Sierra Nevada is home to  75  amazing groves of Giant Sequoias nestled  in the  Western Slope of the Sierra Nevada Mountains. These Groves of Giant Sequoias are  found in Sequoia National Park , Kings Canyon & in the Yosemite national park.  Its scientific name is Sequoiadendron gigantean .There are only three major groves of Giant Sequoias within the  Yosemite National Park: The Mariposa grove, Merced & Tuolumne Grove of Giant Sequoias. These giant trees   were  named after the Cherokee Indian Chief known as  Sequoyah.
The Giant Redwoods are different. They grow up on lower elevation and far along  California Pacific Ocean. California Coastal  Redwoods naturally grow only in a narrow strip along the Pacific Coast.  Home to the world's tallest trees (378 feet talll). See our comparison diagram between the Sequoias and the Coastal Redwoods for more information:

redwood illustrationredwood illustration
Coastal Redwoods Diagram Comparison Giant Sequoias
REDWOOD FACTS
Factors of comparison
SEQUOIA FACTS
Sequoia sempervirens/coast redwoods(cypress family or  Cupressaceae)

Scientific name

Family
Sequoiadendron giganteum Giant Sequoias (cypress family or  Cupressaceae)
sempervirens -- from the Latin meaning "always green"
Species Name
Sequoia – from the Cherokee Indian chief Sequoyah
the tallest living tree on earth up to 370ft
Characteristics
the largest living tree on earth up to 40 ft L.
Alluvial soils on flats and benches, stands in  dense forest requires moisture and  fog.
Habitat

In Granatic and rocky soil in scattered coniferous groves  in the Western slope of California.

In narrow strip along the pacific coast from s. Oregon down to Monterey County. Grew by the sea level up to750 ft
Range & Elevation

Sierra  Nevada between 4500 to 7500 feet high 

Up to 2,2000 years
Age
To 3,200 years
Up to  1.7 million lbs
Weight
Up to 2.8 million lbs.
200 to 370 ft (Redwood N.P.)
Height
150 to 300 feet
 
(23 ft) diameter at base
Circumference at Ground
102.6
10 to 25 ft  
Maximum Diameter at Base
Up to 38 ft. diameter
Fibrous reddish-brown

Tree trunk

Fibrous reddish-brown very wide
12 in, Spongy, fibrous with a bright red-brown. Thanks to its thick bar it resists fire
Bark 
Thicker up to  33 in. spongy . Thanks to its thick bar it resists fire
Tinny elliptical, reddish-brown Hanging down at end of leafy twig. maturing in 1 season

Cone
Shape and  size

Unlike male cone, female cones have 1-20 ovules on each scale, measure  0.4 - 6 cm long with an oval shape,  maturing in 2 seasons
9 to 75 ft
Height of First Large Branch above the Base
130 to 140 ft high
Each cone scale bears 3-7 seeds, each seed 3-4 mm long and  0.5 mm broad, with 2 wings 1 mm wide. The seeds are released when the cone scales dry out and open at maturity.
Seed Size
2-5 seeds under cone scale light brown,2-winged. As large as grape  seeds, So small that it takes 91.000 seeds to equal 1 pound
1 - 3.50  ft
Diameter of Largest Branch 
6.8  to 8 ft. diameter larger than anyone Sq.tree
9 to 75 ft
Height of First Large Branch above the Base
130 to 140 ft high
By seed or root sprout
Reproduce
By seed only. seeds eaten by squirrels& birds
2 types of Evergreen :needle & unequal (10-20 mm) flat, stiff  and sharp-pointed spreading in 2 rows
Leaves 

Evergreen crowded and  overlapping(3-7mm)

 
Conditions to germinate
 

Shallow roots: 6  to  12 feet deep
Spread  out  up to 150 fee          

Root system
Shallow roots:  8 to   14 deep  Spread out 50 to 90 fee            
redwood illustrationredwood illustration

 

shallow root system pic
architecture d'un arbre
architecture d'un arbre
Small Cones