Botanists once shoehorned the sky - scrap coastal redwoods and the hulking giant sequoias into the same systematic family . The trees do share obvious characteristic ; both are evergreen , grow in a similar chain and get hold of awe - inspiring sizes . However , coastal redwoods and giant redwood are quite different , even down to their genes – coastal redwood have six sets of chromosome to the giant sequoia ’s two .
Size
Coastal redwoods are the magniloquent Sir Herbert Beerbohm Tree , but giant sequoias are the most massive . The tallest coastal sequoia is 378 feet tall , according to the Sequoia National Park website . The largest giant sequoia grows to 310 feet tall but has a lowly diameter of 35 feet . The taller coastal sequoia has a diameter of only 22 feet , giving the " largest by mass ' " title to the giant redwood . The trunk of General Sherman , a elephantine sequoia in King ’s Canyon National commons , weigh about 1,400 stacks – as much as 15 blue whales .
Growth Habit
Although both coastal redwoods and jumbo redwood reproduce by cum , coastal redwoods have the secondary ability to multiply through sprout . As they mature , the barque of a elephantine sequoia can grow 36 inches thick in equivalence to the coastal redwood ’s 12 inch , and the old giant redwood was closely 3,200 age old . The sometime coastal sequoia is roughly 1,000 years younger . Coastal redwood require humid and cool shape to grow . Giant sequoias can withstand hotness and moderately dry conditions .
Location
Coastal redwoods , as the name implies , favour humble , temperate altitude . They grow from sea level to 3,600 feet , in in humid and cooler regions along the California sea-coast up into British Columbia . Giant sequoias are happy inland and grow along the westerly boldness of the Sierra Nevada flock , at elevation from 4,800 feet to 8,200 feet between Placer and Tulare counties . Many of the largest are protect in King ’s Canyon National Park , Yosemite National Park and Sequoia National Park .
Physical Characteristics
These two giants share the same cinnamon - colored , vertically - lined barque and red , tannin - tied heartwood . However , the needles of the coastal redwood are softer , plane and arranged along either side of the center base , similar in bodily structure to a plume . Giant redwood , on the other mitt , have scaled leaves held in sprays . The gargantuan redwood ’s foliage is barbed and better able to withstand heat and dry conditions . Both species have astonishingly lowly seeds , with the somewhat bigger giant redwood seed consume the shape of a roll oat and stored in an egg - work cone . The coastal redwood has an even smaller seed , similar in size of it to a Lycopersicon esculentum semen , and the cone is the size of an olive .
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