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Quercus greggii

Quercus greggi, otherwise known as the Mexican oak, is a monoecious semi-evergreen oak that is adapted to survive in arid conditions. It is native to Mexico and commonly grow around 2,000–3,300 metres (6,600–10,800 ft) north of the 24th parallel and spreads across multiple locales.

Mexican oak (Quercus greggii)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Quercus
Species:
Q. greggii
Binomial name
Quercus greggii
(A.DC.) Trel.
Synonyms
List
  • Quercus derrumbaderoensis C.H.Mull.
  • Quercus greggii f. subglabra C.H.Mull.
  • Quercus loeseneri Trel.
  • Quercus reticulata var. greggii A.D.C.
  • Quercus reticulata f. pungens C.H.Mull.
  • Quercus revoluta f. pungens C.H.Mull.

The plants grow to approximately 6.1–7.6 m (20–25 ft) in height (can be as small as 1.8 m or 6 ft) and 3–4.6 m (10–15 ft) in width with waxy rounded-ovular leaves that have dimensions of around 3–6 x 2–4 centimetres. The leaves are generally covered in a dense layer of trichomes. The bark is scale-like and light gray; it is covered in small lenticels, allowing the plants to undergo gas exchange with the surrounding atmosphere. The twigs of the plant are covered in thick woolly hairs.

Around April, the trees produce catkins that can have approximately 18 flowers are around 3–4.5 cm long. As the plants are monoecious (producing male and female cones on the same plant), they also produce female inflorescences. The female inflorescence generally grow around 2–4 flowers and are covered in trichomes, like the leaves of the plants. Like many more commonly known oaks, Mexican oaks utilize their male and female reproductive structures to produce the acorn nuts of the plant, which can appear alone or in clusters on small peduncles stemming from the main branches. The acorns contain a seed and eventually fall from the tree to start the growth of a new Mexican oak.

La Siberia is a cultivar of this species.

References edit

  • "Quercus greggii". oaks.of.the.world.free.fr. Oaks of the World. Retrieved 16 May 2017.

quercus, greggii, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, page, ple. This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Quercus greggii news newspapers books scholar JSTOR May 2017 This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help improve this article by introducing more precise citations May 2017 Learn how and when to remove this message Learn how and when to remove this message Quercus greggi otherwise known as the Mexican oak is a monoecious semi evergreen oak that is adapted to survive in arid conditions It is native to Mexico and commonly grow around 2 000 3 300 metres 6 600 10 800 ft north of the 24th parallel and spreads across multiple locales Mexican oak Quercus greggii Scientific classification Kingdom Plantae Clade Tracheophytes Clade Angiosperms Clade Eudicots Clade Rosids Order Fagales Family Fagaceae Genus Quercus Subgenus Quercus subg Quercus Section Quercus sect Quercus Species Q greggii Binomial name Quercus greggii A DC Trel Synonyms List Quercus derrumbaderoensis C H Mull Quercus greggii f subglabra C H Mull Quercus loeseneri Trel Quercus reticulata var greggii A D C Quercus reticulata f pungens C H Mull Quercus revoluta f pungens C H Mull The plants grow to approximately 6 1 7 6 m 20 25 ft in height can be as small as 1 8 m or 6 ft and 3 4 6 m 10 15 ft in width with waxy rounded ovular leaves that have dimensions of around 3 6 x 2 4 centimetres The leaves are generally covered in a dense layer of trichomes The bark is scale like and light gray it is covered in small lenticels allowing the plants to undergo gas exchange with the surrounding atmosphere The twigs of the plant are covered in thick woolly hairs Around April the trees produce catkins that can have approximately 18 flowers are around 3 4 5 cm long As the plants are monoecious producing male and female cones on the same plant they also produce female inflorescences The female inflorescence generally grow around 2 4 flowers and are covered in trichomes like the leaves of the plants Like many more commonly known oaks Mexican oaks utilize their male and female reproductive structures to produce the acorn nuts of the plant which can appear alone or in clusters on small peduncles stemming from the main branches The acorns contain a seed and eventually fall from the tree to start the growth of a new Mexican oak La Siberia is a cultivar of this species References edit Quercus greggii oaks of the world free fr Oaks of the World Retrieved 16 May 2017 Retrieved from https en wikipedia org w index php title Quercus greggii amp oldid 1149194686, wikipedia, wiki, book, books, library,

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