Young Giant Sequoia, Sequoiadendron giganteum (Dcrjsr, 2010) Young giant sequoia in the City Center Park arboretum.

Giant Sequoia

Sequoiadendron giganteum (Lindl.) Buchholz

Giant Sequoia

Sequoiadendron giganteum (Lindl.) Buchholz

“…a giant sequoia in Sequoia National Park, is the largest tree in the world by volume” – Fun Facts
Young Giant Sequoia, Sequoiadendron giganteum (Dcrjsr, 2010) Young Giant Sequoia, Sequoiadendron giganteum (Dcrjsr, 2010)

Summary

Tree

Sequoiadendron giganteum is a species of tree that grows up to 325 feet tall. Young trees are noticeably full and triangular in shape, but as it matures, the tree grows a massive and tall trunk with scattered branches.

Bark

Bark is red-brown and strongly furrowed in long lines. Leaves are scale-like or awl-shaped and evergreen.

Leaves

Leaves are scale-like or awl-shaped and evergreen.

Male pollen cones

Male pollen cones are 4-8 mm wide and long and most often spherical.

Female seed cones

Female seed cones are usually ten times the size of the pollen cones, up to 3 inches long, oval, and opening with long diamond-shaped scales.

Taxonomy

(How things are grouped and categorized based on shared traits.)
  • Kingdom: Plantae
  • -Phylum: Streptophyta
  • –Class: Equisetopsida
  • —Subclass: Pinidae
  • —-Order: Pinales
  • —–Family: Cupressaceae
  • ——Genus: Sequoiadendron
  • ——-Species: giganteum
Seed Cones, Sequoiadendron giganteum (Hodge, 1960)
Seed Cones, Sequoiadendron giganteum (Hodge, 1960)

Taxonomic History:

Giant Sequoia was first described as Wellingtonia gigantea by John Lindley (1853), named for the Duke of Wellington in the United Kingdom where it was introduced in 1853. Later, the species was placed in its own genus Sequoiadendron by Buchholz (1939). Since then, two other extinct species described from fossils have been added to the genus, Sequoiadendron chaneyi (Axelrod, 1956) and Sequoiadendron tchucoticum (Sokolva & Moiseeva, 2016).

Leaves and young female seed cone, Sequoiadendron giganteum (Benda, 2006).
Leaves and young female seed cone, Sequoiadendron giganteum (Benda, 2006).

Identification Tips

Sequoiadendron giganteum can occasionally be mistaken in its younger form for the genus Juniperus, with similarly scale-like, pleated foliage, but is much more tree-like than the shrub-shaped junipers, and is distinguished by its hard, woody cones, as opposed to fleshy berry-like cones that are characteristic to Junipers. Sequoiadendron giganteum can be easily distinguished from other redwoods by its foliage, with closed, scale-like leaves, as opposed to the elongated, blade-shaped leaves of other redwoods (Redwoodworld, 2024).

Fun Fact icon

Fun Fact!

Sequoiadendron giganteum individuals are incredibly long-lived, living for thousands of years, and are among some of the largest living organisms (by individual size).

Fun Fact icon

Fun Fact!

General Sherman, a giant sequoia in Sequoia National Park, is the largest tree in the world by volume and is estimated to be between 2150 and 3200 years old (Stephenson, 2000).

Native Range:

Distribution map of Giant Sequoia. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)
Distribution map of Giant Sequoia. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)
Color indicator for introduced range

Native

Color indicator for native range

Introduced

Distribution map of Giant Sequoia. Green indicates the native range and purple indicates where it has been introduced (POWO, 2024)

Economic or Ethnobotanical Uses

  • Mostly now utilized in the horticulture industry, due to its large volume, Giant Sequoia was once a source of lumber. Logging ceased once the species came under federal protection, and since then native populations serve the purpose of bringing in tourism to view these magnificently massive organisms.
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Giant Sequoia Tree in a park
Giant Sequoia Tree in a park

Conservation Status

Sequoiadendron giganteum is listed as Endangered by the IUCN Red List (Schmid & Farjon, 2013), with as few as 80,000 individuals left alive in about 20 populations.

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