Quercus obtusata

Quercus obtusata
Conservation status
	; Least Concern (IUCN 3.1)
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. obtusata
Binomial name
	Quercus obtusata; Bonpl.
Synonyms
	List Quercus alvarezensis Trel. ; Quercus atriglans E.F.Warb. ; Quercus crenatifolia Trel. ; Quercus hartwegii Benth. ; Quercus hartwegii f. glabrata Trel. ; Quercus obtusata var. hartwegii (Benth.) A.DC. ; Quercus obtusata var. pandurata (Bonpl.) A.DC. ; Quercus pandurata Bonpl. ; Quercus pandurata var. hartwegii (Benth.) Wenz. ; Quercus panduriformis Trel. ; Quercus panduriformis f. colimensis Trel. ; Quercus panduriformis f. rubrinervis Trel. ; Quercus spicata Bonpl. ;

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

^ Jerome, D. (2018). "Quercus obtusata". IUCN Red List of Threatened Species. 2018. Retrieved 10 March 2023.
^ "Quercus obtusata Bonpl.". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew – via The Plant List. Note that this website has been superseded by World Flora Online
^ McVaugh, R. 1974. Flora Novo-Galiciana: Fagaceae. Contributions from the University of Michigan Herbarium 12(1,3): 1–93
^ ^a ^b 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
^ Bonpland, Aimé Jacques Alexandre. 1809. Plantae Aequinoctiales 2: 26-27 diagnosis in Latin, description and commentary in French
^ Bonpland, Aimé Jacques Alexandre. 1809. Plantae Aequinoctiales 2: plate 76 drawing of Quercus obtusata

External links

photo of herbarium specimen at Missouri Botanical Garden, collected in México State in 1934

This article about plants in the genus Quercus is a stub. You can help Wikipedia by expanding it.

[iucn_status-1] Jerome, D. (2018). "Quercus obtusata". IUCN Red List of Threatened Species. 2018. Retrieved 10 March 2023.

[2] "Quercus obtusata Bonpl.". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew – via The Plant List. Note that this website has been superseded by World Flora Online

[3] McVaugh, R. 1974. Flora Novo-Galiciana: Fagaceae. Contributions from the University of Michigan Herbarium 12(1,3): 1–93

[evangelina-4] 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

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