Their are three distinct species, two of which hold a record. The Coast Redwood (Sequoia sempervirens), holds the record for the tallest tree in the world, at about 112m (360+ feet). The foliage resembles that of the Yew having flat needles.
The Giant Sequoia (Sequoiadendron giganteum), a.k.a the Wellingtonia, after the Duke of Wellington, has more Juniper like foliage, holds the record of being the largest living thing on the planet.
The Third of the redwoods, the Dawn Redwood (Metasequoia glyptostrobides), also has flat needle like foliage.
All three will make excellent bonsai their cultral and training needs are identical, needing an open loamy soil, perhaps a bit less grit in the compost.
The Coast Redwood and The Wellingtonia
© Allen. C. Roffey 20:25 03/02/98