Sequoiadendron giganteum (Lindl.) J.Buchholz

Sierra redwood (en), Séquoia géant (fr), Wellingtonia (fr), Séquoiadendron géant (fr)

Species

Gymnosperms > Cupressales > Cupressaceae > Sequoiadendron

Characteristics

Trees to 90 m tall; trunk strongly buttressed at base, to 12 m d.b.h.; bark brown, spongy, deeply fissured and finally separating into cinnamon-colored fibers; crown conical whenyoung, becoming open with age; branches of young trees spreading, on older trees drooping; axis of branchlets green or dark green in 1st year, thereafter pale brown to reddish brown. Leavesblue-green, base decurrent, distal free portion 3-5 mm, apex sharply pointed. Seed cones ellipsoid, 5-8 × 3-5.5 cm; cone scales shieldlike, ca. 2.5 cm, apical scales 6-10 mm wide, with distalgroove, ending in a long, terete spine at middle when young. Seeds pale brown, elongate-ellipsoid, 3-6 mm.
More
Trees to 90 m; trunk to 11 m diam.; crown conic and monopodial when young, narrowed and somewhat rounded in age. Bark reddish brown, to ca. 60 cm thick, fibrous, ridged and furrowed. Branches generally horizontal to downward-sweeping with upturned ends. Leaves generally with stomates on both surfaces, the free portion to ca. 15 mm. Pollen cones nearly globose to ovoid, 4--8 mm. Seed cones 4--9 cm. Seeds 3--6 mm. 2 n = 22.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality monoecy
Pollination anemogamy
Spread anemochory
Mature width (meter) 25.0
Mature height (meter) 75.5
Root system -
Rooting depth (meter) 1.4
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Well-drained but moist soils with an annual precipitation of 110-15  a year. Found on the west side of the Sierra Nevada between 1500 and 2500 metres.
Light 5-8
Soil humidity 3-6
Soil texture 1-6
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 7-9

Usage

Uses afforestation environmental use material medicinal wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Sequoiadendron giganteum habit picture by Jonathan Devert (cc-by-sa)
Sequoiadendron giganteum habit picture by Alain Bigou (cc-by-sa)
Sequoiadendron giganteum habit picture by Alain Bigou (cc-by-sa)

Leaf

Sequoiadendron giganteum leaf picture by Catherine Bouvard (cc-by-sa)
Sequoiadendron giganteum leaf picture by elsan (cc-by-sa)
Sequoiadendron giganteum leaf picture by fil escande (cc-by-sa)

Flower

Sequoiadendron giganteum flower picture by Alain Bigou (cc-by-sa)

Fruit

Sequoiadendron giganteum fruit picture by Alain Bigou (cc-by-sa)
Sequoiadendron giganteum fruit picture by Lole Baptiste (cc-by-sa)
Sequoiadendron giganteum fruit picture by Christophe Gautreau (cc-by-sa)

Distribution

Sequoiadendron giganteum world distribution map, present in Brazil, China, France, and United States of America

Conservation status

Sequoiadendron giganteum threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:677175-1
WFO ID wfo-0000496705
COL ID 4WSQK
BDTFX ID 63111
INPN ID 122788
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Taxodium giganteum Taxodium washingtonianum Wellingtonia gigantea Sequoia wellingtonia Steinhauera gigantea Gigantabies wellingtoniana Sequoia gigantea Americus giganteus Americus gigantea Washingtonia brachypoda Washingtonia bolanderi Taxodium washingtonium Washingtonia ambigua Sequoia washingtoniana Wellingtonia gigantea var. pendula Sequoia wellingtonia var. pendula Sequoia gigantea var. pendula Washingtonia americana Washingtonia californica Washingtonia gigantea Wellingtonia californica Wellingtonia pendula Sequoiadendron giganteum f. pendulum Sequoia gigantea f. pendula Sequoiadendron giganteum