Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society. A single specimen is quite an imposing sight. Giant Sequoia is a popular, large ornamental tree in moist, cool temperate climates along the Pacific Coast and around the world. Sequoiadendron giganteum and its close relative, Sequoia sempervirens (Redwood), are jointly designated as the State Tree of California. Most Giant Sequoias in California are now protected in parks, including Yosemite, Sequoia and Kings Canyon National Parks. Spectacular with its huge red trunk and neat pyramidal shape, this California native is long-lived (2000-3000 years!). long (5 cm), have thick woody scales that are swollen at the edge. Quite small for such a big tree, the ovoid, reddish brown cones, 2 in. thick (30 cm) or even thicker on mature trees. The spongy bark is rich reddish brown, ridged and furrowed, and can be 12 in. The blue-green needles are awl-shaped, slightly appressed, and arranged spirally round the stems. As trees mature (after a century of growth), they begin to lose their lower branches to become tall and straight with a high crown. Young trees have a beautiful, broad-pyramidal shape with branches that droop at the ends. PubMed: Lack of incorporation of tritiated uridine by nuclei of mature sieve elements in Metasequoia glyptostroboides and Sequoiadendron giganteum.The largest tree in the world, Sequoiadendron giganteum (Giant Sequoia) is a vigorous evergreen conifer adorned with a massive fluted trunk, covered with thick, reddish-brown bark, and a dense conical crown. PubMed: Kinetics of amino acid racemization in Sequoiadendron giganteum heartwood. PubMed: Histopathology and Host Range Studies of the Redwood Nematode Rhizonema sequoiae. PubMed: Nucleotide and nucleic acid status in shoot tips from juvenile and mature clones of Sequoiadendron giganteum during rest and growth phases. PubMed: In vitro meristem culture of juvenile and mature Sequoiadendron giganteum. PubMed: Sequential rooting media and rooting capacity of Sequoiadendron giganteum in vitro. PubMed: J 16: An apex protein associated with juvenility of Sequoiadendron giganteum. PubMed: Effects of ozone and sulfur dioxide on phyllosphere fungi from three tree species. PubMed: A two-dimensional electrophoresis procedure for single meristems of different forest species. PubMed: Fire history and climate change in giant sequoia groves. PubMed: Changes in gas exchange characteristics during the life span of giant sequoia: implications for response to current and future concentrations of atmospheric ozone. PubMed: Response of giant sequoia canopy foliage to elevated concentrations of atmospheric ozone. PubMed: Methyl jasmonate-induced ethylene production is responsible for conifer phloem defense responses and reprogramming of stem cambial zone for traumatic resin duct formation. PubMed: Carbon content variation in boles of mature sugar maple and giant sequoia. PubMed: Effects of tree height on branch hydraulics, leaf structure and gas exchange in California redwoods. 
PubMed: Arbuscular mycorrhizal colonization of giant sequoia (Sequoiadendron giganteum) in response to restoration practices. PubMed: Bedrock composition regulates mountain ecosystems and landscape evolution. PubMed: Structural development of redwood branches and its effects on wood growth. PubMed: Millennium-scale crossdating and inter-annual climate sensitivities of standing California redwoods. PubMed: The sequoia-loving sprite, a new genus and species of fungus gnat (Diptera, Mycetophilidae) from California. PubMed: Contrasting drought-response strategies in California redwoods. PubMed: Bacterial endophyte communities in the foliage of coast redwood and giant sequoia.
PubMed: Phenotypic plasticity of leaves enhances water-stress tolerance and promotes hydraulic conductivity in a tall conifer. Articles: PubMed: Long-term demographic decline and late glacial divergence in a Californian paleoendemic: Sequoiadendron giganteum (giant sequoia).
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