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bur oak

Translation
bur oak
an oak tree, Quercus macrocarpa, of eastern North America, having shiny, dark-green leaves, light-gray deeply ridged bark, and very large acorns with a fringed cup, yielding a hard, durable wood: the state tree of Illinois.
[1805-15, Amer.]

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▪ tree
also spelled  burr oak,  also called  mossy-cup oak 
 (Quercus macrocarpa), North American timber tree belonging to the white oak group of the genus Quercus in the beech family (Fagaceae), distributed primarily throughout the central United States. Often 25 metres (80 feet) tall, the tree may reach 50 metres. Its leaves, about 25 centimetres (10 inches) long, are dark green and shiny above, dull and whitish beneath; the wide upper half of each leaf is separated from the narrow lower part by two deep sinuses. Bur oak is also called mossy-cup oak for its heavily fringed acorn cups. It has become a popular ornamental and shade tree in urban areas because of its resistance to insect and fungal attack, drought, and air pollution. Previously common in oak savannas and prairies, the tree is well adapted to fire with its corky, fire-resistant bark.

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Universalium. 2010.

  
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  • Bur oak — Oak Oak ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and… …   The Collaborative International Dictionary of English

  • Bur oak — Bur Bur, Burr Burr (b[^u]r), n. [OE. burre burdock; cf. Dan. borre, OSw. borra, burdock, thistle; perh. akin to E. bristle (burr for burz ), or perh. to F. bourre hair, wool, stuff; also, according to Cotgrave, the downe, or hairie coat,… …   The Collaborative International Dictionary of English

  • bur oak — 1> бот. дуб крупноплолдный (Quercus macrocarpa) …   Новый большой англо-русский словарь

  • Bur oak — Taxobox name = Bur Oak status = LR/lc | status system = IUCN2.3 image width = 240px image caption = Bur Oak leaves and acorn regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Fagaceae genus = Quercus sectio …   Wikipedia

  • bur oak — noun Date: 1815 a usually large oak (Quercus macrocarpa) of eastern North America having oval acorns enclosed in a fringed cap and tough close grained wood …   New Collegiate Dictionary

  • bur oak — бот. дуб крупноплодный (ботаника) дуб крупноплолдный (Quercus macrocarpa) …   Большой англо-русский и русско-английский словарь

  • bur oak — [ bɜː(r) əʊk] Ботаника: дуб крупноплодный (Quercus macrocarpa) …   Универсальный англо-русский словарь

  • Oak savanna — Oak savanna, California An oak savanna is a type of savanna, or lightly forested grassland, where oaks (Quercus spp.) are the dominant tree species. These savannas were maintained historically through wildfires set by lightning, grazing, low… …   Wikipedia

  • Oak — ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and staminate… …   The Collaborative International Dictionary of English

  • Oak apple — Oak Oak ([=o]k), n. [OE. oke, ok, ak, AS. [=a]c; akin to D. eik, G. eiche, OHG. eih, Icel. eik, Sw. ek, Dan. eeg.] [1913 Webster] 1. (Bot.) Any tree or shrub of the genus {Quercus}. The oaks have alternate leaves, often variously lobed, and… …   The Collaborative International Dictionary of English