Biology:Quercus obtusata

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Short description: Species of oak tree

Quercus obtusata
Quercus obtusata in Hackfalls Arboretum (2).jpg
Scientific classification edit
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. obtusata
Binomial name
Quercus obtusata
Bonpl.
Synonyms[2]

Quercus obtusata is an oak in the white oak group (Quercus sect. Quercus) endemic to Mexico, with a distribution ranging from San Luis Potosí and Nayarit south to Oaxaca, from 620 to 2800 MSL.[clarification needed][3][4]

Quercus obtusata is a tree up to 20 metres (66 feet) tall with a trunk sometimes more than 60 centimetres (24 inches) in diameter. The leaves are thick and leathery, up to 22 cm (8 3⁄4 in) long, widely egg-shaped with 3–9 pairs of shallow rounded lobes or undulations.[4][5][6]

Resembles Q. potosina, which has smaller leaves (3–10 x 2–6 cm); also resembles Q. rugosa, this one has a convex leaf strongly coriaceous, a revolute margin, the epidermis bullate; at least, one can differentiate Q. obtusata from Q. laeta, which has foliar underside glaucous, without masses of glandular secretions, none or rare glandular trichomes, a leaf more oblong than oboval with a margin sometimes entire.

References

  1. ↑ Jerome , D. (2018). "Quercus obtusata". IUCN Red List of Threatened Species 2018. https://www.iucnredlist.org/species/194208/2304136. Retrieved 10 March 2023. 
  2. ↑ "Quercus obtusata Bonpl.". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens (Kew). http://www.theplantlist.org/tpl1.1/record/kew-174152. 
  3. ↑ McVaugh, R. 1974. Flora Novo-Galiciana: Fagaceae. Contributions from the University of Michigan Herbarium 12(1,3): 1–93
  4. ↑ 4.0 4.1 Romero Rangel, S., E. C. Rojas Zenteno & M. L. Aguilar Enríquez. 2002. El género Quercus (Fagaceae) en el estado de México. Annals of the Missouri Botanical Garden 89(4): 551–593 in Spanish, with line drawings of each species
  5. ↑ Bonpland, Aimé Jacques Alexandre. 1809. Plantae Aequinoctiales 2: 26-27 diagnosis in Latin, description and commentary in French
  6. ↑ Bonpland, Aimé Jacques Alexandre. 1809. Plantae Aequinoctiales 2: plate 76 drawing of Quercus obtusata

External links

Wikidata ☰ Q15338535 entry




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