Dinizia excelsa

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Dinizia excelsa

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Genus: Dinizia
Species:
D. excelsa
Binomial name
Dinizia excelsa

Dinizia excelsa is a South American

Wapisiana
it is called parakwa.

Description

It is the tallest-growing species in the pea family,

cylindrical, the bole of larger specimens 15–22.5 m, up to 3 m in diameter at soil level. The DBH of mature specimens is typically between 80 and 200 cm (31 and 79 in), moderately to strongly buttressed, the buttresses to 4–5 m tall.[7][5]

The heartwood is reddish brown with a slightly paler sapwood. The wood is durable and difficult to work with due to its density and irregular grain.[4]

Distribution and habitat

It is found in Guyana, Suriname and Amazonia Brazil (in the northern and central-western states of Amapa, Amazonas, Mato Grosso, Para, Rondonia, Roraima and Tocantins). Also recorded from the state of Acre by Lorenzi (1992).[8]

The species grows in non-inundated moist and upland mixed forests known as "floresta ombrofila mista", tropical forest on "terra firme", tropical upland evergreen forest, and tropical dry forest.[7] It has been recorded at elevations from 50 to 490 m.[7]

Tallest tree

The tallest measured specimen is 88.5 m (290 ft) with a circumference of 5.5 m (18 ft), which is believed to be about 400 years old, discovered near Jari River in Inipuku (municipality of Almeirim, Para state) in 2019.[9][10] The discovery was made using airborne laser scanning (ALS) and field verification in Paru State Forest, which is shared by the Brazilian Amazon basin states of Amapa and Para.[11][12][13] On 7 October 2022 a group of researchers reached the tree and measured a circumference of 9.9 meters.

See also

References

  1. . Retrieved 11 December 2022.
  2. ^ tropicos.org / Dinizia excelsa Ducke
  3. ^ theplantlist.org / Dinizia excelsa Ducke
  4. ^ a b wood-database.com / Angelim vermelho
  5. ^ a b plantsoftheworldonline.org / Dinizia excelsa Ducke
  6. ^ Lorenzi (1992).
  7. ^ a b c Lewis GP et al. 2017. The majestic canopy-emergent genus Dinizia (Leguminosae: Caesalpinioideae), including a new species endemic to the Brazilian state of Espírito Santo. Kew Bulletin 72:48. DOI 10.1007/S12225-017-9720-7
  8. ^ gbif.org / Dinizia excelsa Ducke, 1922
  9. ^ inverse.com / The Amazon’s Tallest Trees Are Safe (for Now), By Nina Pullano on September 12, 2019
  10. ^ mongabay.com / LIDAR technology leads Brazilian team to 30 stories tall Amazon tree, by Jenny Gonzales on 11 November 2019
  11. S2CID 202845660
    . Retrieved 5 December 2020.
  12. ^ Langlois, Jill (27 September 2019). "Researchers Discover the Tallest Known Tree in the Amazon". Smithsonian Magazine. Retrieved 5 December 2020.
  13. ^ theconversation.com / The Amazon’s tallest tree just got 50% taller – and scientists don’t know how, September 11, 2019