List of superlative trees

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The coniferous Coast Redwood is the tallest tree species on earth.

The world's superlative trees can be ranked by any factor. Records have been kept for trees with superlative height, trunk diameter or girth, canopy coverage, airspace volume, wood volume, estimated mass, and age.

Tallest[edit]

The heights of the tallest trees in the world have been the subject of considerable dispute and much exaggeration. Modern verified measurements with laser rangefinders, or with tape drop measurements made by tree climbers (such as those carried out by canopy researchers), have shown that some older measuring methods and measurements are often unreliable, sometimes producing exaggerations of 5% to 15% or more above the real height.[1] Historical claims of trees growing to 130 m (430 ft), and even 150 m (490 ft), are now largely disregarded as unreliable, and attributed to human error. Historical records of fallen trees measured prostrate on the ground are considered to be somewhat more reliable.

The following are now accepted as the tallest reliably measured specimens from the top nine species. This list shows only currently standing specimens:

  1. Coast Redwood (Sequoia sempervirens): 115.72 m (379.65 ft), Hyperion, Redwood National Park, California, United States[2]
  2. Coast Douglas-fir (Pseudotsuga menziesii): 99.76 m (327.3 ft), Brummit Creek, Coos County, Oregon, United States[3][4]
  3. Eucalyptus regnans: 99.6 m (327 ft), Centurion, Arve Valley, Tasmania, Australia[5][6][7]
  4. Sitka Spruce (Picea sitchensis): 96.7 m (317 ft), Prairie Creek Redwoods State Park, California, United States[8]
  5. Giant Sequoia (Sequoiadendron giganteum): 95.8 m (314 ft), Sequoia National Forest, California, United States[9]
  6. Eucalyptus globulus (Blue Gum Eucalyptus): 90.7 m (298 ft), Tasmania, Australia[10]
  7. Eucalyptus viminalis: 89 m (292 ft), Evercreech Forest Reserve, Tasmania, Australia[10]
  8. Yellow Meranti (Shorea faguetiana): 88.3 m (290 ft) Tawau Hills National Park, in Sabah on the island of Borneo[11]
  9. Eucalyptus delegatensis: 87.9 m (288 ft), Tasmania, Australia[10]
A view of a tree from below; this may exaggerate apparent height

Stoutest[edit]

The girth of a tree is usually much easier to measure than the height, as it is a simple matter of stretching a tape round the trunk, and pulling it taut to find the circumference. Despite this, UK tree author Alan Mitchell made the following comment about measurements of yew trees:

The aberrations of past measurements of yews are beyond belief. For example, the tree at Tisbury has a well-defined, clean, if irregular bole at least 1.5 m long. It has been found to have a girth that dilated and shrunk in the following way: 11.28 m (1834 Loudon), 9.3 m (1892 Lowe), 10.67 m (1903 Elwes and Henry), 9.0 m (1924 E. Swanton), 9.45 m (1959 Mitchell) ... Earlier measurements have therefore been omitted.

As a general standard, tree girth is taken at "breast height". This is converted to and cited as dbh (diameter at breast height) in tree and forestry literature.[13][14] Breast height is defined differently in different situations, with most forestry measurements taking girth at 1.3 m above ground,[14] while those who measure ornamental trees usually measure at 1.5 m above ground;[13] in most cases this makes little difference to the measured girth. On sloping ground, the "above ground" reference point is usually taken as the highest point on the ground touching the trunk,[13][14] but in North America a point, that is the average of the highest point and the lowest point the tree trunk appears to contact the soil, is usually used.[15] Some of the inflated old measurements may have been taken at ground level. Some past exaggerated measurements also result from measuring the complete next-to-bark measurement, pushing the tape in and out over every crevice and buttress.[12]

Modern trends are to cite the tree's diameter rather than the circumference. The diameter of the tree is calculated by finding the mean diameter of the trunk, in most cases obtained by dividing the measured circumference by π; this assumes the trunk is mostly circular in cross-section (an oval or irregular cross-section would result in a mean diameter slightly greater than the assumed circle). Accurately measuring circumference or diameter is difficult in species with the large buttresses that are characteristic of many species of rainforest trees. Simple measurement of circumference of such trees can be misleading when the circumference includes much empty space between buttresses. See also Tree girth measurement

Baobabs (genus Adansonia) store large amounts of water in the very soft wood in their trunks. This leads to marked variation in their girth over the year (though not more than about 2.5%[16]), reaching maximum at the end of the rainy season, and minimum at the end of the dry season.

The stoutest living single-trunk species in diameter are:

  1. Montezuma Cypress (Taxodium mucronatum): 11.62 m (38.1 ft), Árbol del Tule, Santa Maria del Tule, Oaxaca, Mexico.[17] This diameter includes buttressing. A more accurate mean diameter for this tree is 9.38 m (30.8 ft).[17]
  2. Baobab (Adansonia digitata): 10.64 m (34.9 ft), Sunland Baobab, South Africa. Renowned because a bar and wine cellar operates inside its hollow trunk.
  3. Giant Sequoia (Sequoiadendron giganteum): 8.85 m (29.0 ft), General Grant tree, General Grant Grove, California, United States[18]
  4. Coast Redwood (Sequoia sempervirens): 7.9 m (26 ft), Lost Monarch, Jedediah Smith Redwoods State Park, California, United States.
  5. Eucalyptus obliqua: 6.72 m (22.0 ft)
  6. Eucalyptus regnans: 6.52 m (21.4 ft), Big Foot, Geeveston, Tasmania
  7. Western Redcedar (Thuja plicata): 5.94 m (19.5 ft), Quinault Lake Cedar, Olympic National Park[19]
  8. Sitka Spruce (Picea sitchensis): 5.39 m (17.7 ft), Quinault Lake Spruce, Olympic National Park
  9. Kauri (Agathis australis): 5.33 m (17.5 ft), Te Matua Ngahere, Waipoua Forest, New Zealand[20]

Measurements become ambiguous when multiple trunks (whether from an individual tree or multiple trees) grow together. The Sacred Fig grows adventitious roots from its branches, which become new trunks when the root reaches the ground and thickens; a single sacred fig tree can have hundreds of such trunks.[21] The multi-stemmed Hundred Horse Chestnut was known to have a circumference of 57.9 m (190 ft) when it was measured in 1780.

There are known more than 50 species of trees exceeding the diameter of 4.45 m or circumference of 14 m.[22]

Largest by single-stem wood volume[edit]

Further information: List of largest giant sequoias
General Sherman is the largest tree on Earth

The largest trees in total wood volume are both tall and large in diameter and, in particular, hold a large diameter high up the trunk. Measurement is very complex, particularly if branch volume is to be included as well as the trunk volume, so measurements have only been made for a small number of trees, and generally only for the trunk. Few attempts has ever been made to include root or leaf volume.

The top eleven species measured so far are*:

  1. Giant Sequoia (Sequoiadendron giganteum): 1,487 m³ (52,508 cu ft), General Sherman[23]
  2. Coast Redwood (Sequoia sempervirens): 1,203 m³ (42,500 cu ft), Lost Monarch[24]
  3. Montezuma Cypress (Taxodium mucronatum): 750 m³ (25,000 cu ft), Árbol del Tule[25]
  4. Kauri (Agathis australis) : 516 m³ (18,222 cu ft), Tāne Mahuta, Waipoua Forest, New Zealand[26]
  5. Western Redcedar (Thuja plicata): 500 m³ (17,650 cu ft ), Quinault Lake Redcedar[23]
  6. Eucalyptus regnans: 391 m³ (13,808 cu ft), Still Sorrow[27]
  7. Tasmanian Blue Gum (Eucalyptus globulus): 368 m³ (13,000 cu ft), Rullah Longatyle (Strong Girl, also Grieving Giant)[10]
  8. Coast Douglas-fir (Pseudotsuga menziesii) 349 m³ (12,320 cu ft) Red Creek Tree
  9. Sitka Spruce (Picea sitchensis) 337 m³ (11,920 cu ft) Queets Spruce[28]
  10. Eucalyptus obliqua: 337 m³ (11,920 cu ft) "Gothmog," Styx Tall Trees FP, Tasmania.[10]
  11. Eucalyptus delegatensis: 286 m³ (10,100 cu ft), located in Styx River Valley[10]

(*)This list does not take into account specimens no longer living.

Oldest[edit]

Main article: List of oldest trees

The oldest trees are determined by growth rings, which can be seen if the tree is cut down, or in cores taken from the bark to the center of the tree. Accurate determination is only possible for trees that produce growth rings, generally those in seasonal climates. Trees in uniform non-seasonal tropical climates grow continuously and do not have distinct growth rings. It is also only possible for trees that are solid to the center. Many very old trees become hollow as the dead heartwood decays. For some of these species, age estimates have been made on the basis of extrapolating current growth rates, but the results are usually largely speculation. White (1998)[29] proposes a method of estimating the age of large and veteran trees in the United Kingdom through the correlation of a tree's age with its diameter and growth character.

The verified oldest measured ages are:

  1. Great Basin Bristlecone Pine (Pinus longaeva): 5,064 years[30]
  2. Alerce (Fitzroya cupressoides): 3,643 years[31]
  3. Giant Sequoia (Sequoiadendron giganteum): 3,266 years[30]
  4. Western Juniper (Juniperus occidentalis): 2,675 years[30]

Other species suspected of reaching exceptional age include European Yew (Taxus baccata) (probably over 2,000 years[32][33]), Sugi (Cryptomeria japonica) (3,000 years or more[34]), and Western Redcedar (Thuja plicata). The oldest known European Yew is the Llangernyw Yew in the Churchyard of Llangernyw village in North Wales, which is estimated to be between 4,000 and 5,000 years old.[citation needed] The Fortingall Yew is said to be one of the oldest known trees in Europe.

The olive tree also can live for centuries. The oldest verified age is 900 years[35] at Gethsemane (Mount of Olives, as mentioned in the Bible), while several other olive trees are suspected of being 2,000 to 3,000 years old.[36]

See also[edit]

References[edit]

  1. ^ "Native Tree Society". 
  2. ^ "Tallest Coast Redwoods". Landmark Trees Archive. Retrieved 2012-04-03. Hyperion, Redwood National Park, CA, 115.66 m 
  3. ^ "Doerner Fir - Tallest Douglas Fir". Retrieved 2013-02-25. 
  4. ^ "Landmark Trees Archive - Tallest Douglas Fir". Retrieved 2013-02-25. 
  5. ^ "Tasmania's Giant Trees". Retrieved 2013-02-25. 
  6. ^ "Landmark Trees Archive - Tallest Eucalyptus". Retrieved 2013-02-25. 
  7. ^ "Tassies Tallest Trees". Retrieved 2014-11-08. 
  8. ^ "Picea sitchensis". Gymnosperm Database. Retrieved 2007-06-10. This tree also has a sign nearby proclaiming it to be 'the world's largest spruce'. The two tallest on record, 96.7 m and 96.4 m, are in Prairie Creek Redwoods State Park, California 
  9. ^ "Tallest Giant Sequoia". Landmark Trees Archive. Retrieved 2012-04-03. 
  10. ^ a b c d e f "Tasmanian Giant Trees Register". Forestry Tasmania. Archived from the original on 2011-07-19. 
  11. ^ "Tallest Tropical Trees". Landmark Trees Archive. Retrieved 2010-04-14. 
  12. ^ a b Mitchell, A. F. (1972). Conifers in the British Isles. Forestry Commission. Booklet 33. 
  13. ^ a b c Mitchell, A. F. (1974). A Field Guide to the Trees of Britain and Northern Europe. Collins. ISBN 0-00-212035-6. 
  14. ^ a b c Hamilton, G. J. (1975). Forest Mensuration Handbook 39. Forestry Commission Booklet. ISBN 0-11-710023-4. 
  15. ^ "Tree Measuring Guidelines of the Eastern Native Tree Society". Native Tree Society. March 2008. Retrieved 2012-04-04. 
  16. ^ Fenner, M (1980). "Some measurements on the water relations of baobab trees". Biotropica 12 (3): 205–209. doi:10.2307/2387972. 
  17. ^ a b "Taxodium mucronatum". Gymnosperm Database. 
  18. ^ "Sequoiadendron giganteum". Gymnosperm Database. Retrieved 2007-06-10. the General Grant tree in Kings Canyon National Park, CA, which is 885 cm dbh and 81.1 m tall 
  19. ^ "Thuja Plicata". The Gymnosperm Database. 
  20. ^ "Te Matua Ngahere". New Zealand Notable Trees. 
  21. ^ Huxley, A (1992). New RHS Dictionary of Gardening. Macmillan. ISBN 0-333-47494-5. 
  22. ^ "Stoutest trees of the world". Wondermondo. 
  23. ^ a b "A Tale of Big Tree Hunting In California". Gymnosperm Database. Archived from the original on 2007-04-09. Retrieved 2007-06-10. Sequoiadendron giganteum is 1489 m³, Sequoia sempervirens 1045 m³, Thuja plicata 500 m³, Agathis australis ca. 400 m³ 
  24. ^ Sillett, Stephen. "Photo Tour: Redwood, Sequoia sempervirens".  with photogallery including: a general gallery, canopy views, epiphytes, and arboreal animals.
  25. ^ "ENTSTrees - Árbol del Tule". Groups.google.com. Retrieved 2010-10-18. 
  26. ^ "Agathis australis". Gymnosperm Database. 
  27. ^ "Tasmania's Giant Trees". 
  28. ^ "Largest Sitka Spruce". Landmark Trees Archive. Retrieved 2012-04-04. 
  29. ^ White, J (1990). Estimating the Age of Large and Veteran Trees in Britain. Edinburgh: Forestry Commission. 
  30. ^ a b c "Oldlist". Rocky Mountain Tree Ring Research. Retrieved 2013-01-08. 
  31. ^ Lara, Antonio; Villalba, Ricardo (21 May 1993). "A 3620-Year Temperature Record from Fitzroya cupressoides Tree Rings in Southern South America". Science 260 (5111): 1104–1106. doi:10.1126/science.260.5111.1104. 
  32. ^ Harte, J (1996). "How old is that old yew?". At the Edge 4: 1–9. 
  33. ^ Kinmonth, F (2005). "Ageing the yew - no core, no curve?". International Dendrology Society Yearbook: 41–46. ISSN 0307-322X. 
  34. ^ Suzuki, E (1997). "The Dynamics of Old Cryptomeria japonica Forest on Yakushima Island". Tropics 6 (4): 421–428. doi:10.3759/tropics.6.421. 
  35. ^ "Oldest olive trees". Reuters. Retrieved 23 October 2013. 
  36. ^ "World's 10 oldest trees". Mother Nature Network. Retrieved 23 October 2013.