Overcup Oak

Overcup Oak

Taxobox
name = Overcup oak
status = LR/lc


image_width = 240px
image_caption =
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Fagales
familia = Fagaceae
genus = "Quercus"
sectio = "Quercus"
species = "Q. lyrata"
binomial = "Quercus lyrata"
binomial_authority = Walter

"Quercus lyrata" (overcup oak) is an oak in the white oak group ("Quercus" sect. "Quercus"). It is native to lowland wetlands in the southeastern United States, from Delaware and southern Illinois south to northern Florida and southeast Texas.

It is a medium-sized deciduous tree, growing to 20 m tall, with a trunk up to 80 cm (rarely 140 cm) diameter. The leaves are 10-16 cm (rarely 20 cm) long and 5-10 cm broad, deeply lobed, often somewhat lyre-shaped (lyrate), dark green above, paler and often finely hairy beneath. The flowers are catkins, produced in the spring and maturing in about 6-7 months into acorns 2.5-5 cm long and 2-4 cm broad, largely enclosed by the cupule (acorn cup).

The common name comes from the acorns being largely enclosed in the cup; the scientific name comes from the lyrate (lyre-shaped) leaves.

The wood is valuable, similar to that of other white oaks, and used for the same purposes.

References and external links

* [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=233501057 Flora of North America: "Quercus lyrata"]
* [http://www.cas.vanderbilt.edu/bioimages/species/frame/quly.htm "Quercus lyrata" images at bioimages.vanderbilt.edu]


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  • overcup oak — noun medium large deciduous timber tree of central and southern United States; acorns deeply immersed in the cup and mature in first year • Syn: ↑Quercus lyrata • Hypernyms: ↑oak, ↑oak tree * * * ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun Etymology: overcu …   Useful english dictionary

  • oak tree — noun a deciduous tree of the genus Quercus; has acorns and lobed leaves great oaks grow from little acorns • Syn: ↑oak • Hypernyms: ↑tree • Hyponyms: ↑live oak, ↑white oak, ↑ …   Useful english dictionary

  • 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

  • white oak — 1. an oak, Quercus alba, of eastern North America, having a light gray to white bark and yielding a hard, durable wood: the state tree of Connecticut and Maryland. 2. any of several other species of oak, as Q. garryana or Q. lobata, of western… …   Universalium

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  • Swamp White Oak — Taxobox name = Swamp White Oak image caption = Morton Arboretum acc. 71 69 2 image width = 250px regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Fagaceae genus = Quercus sectio = Quercus species = Q.… …   Wikipedia

  • swamp white oak — noun large deciduous oak of the eastern United States with a flaky bark and leaves that have fewer lobes than other white oaks; yields heavy strong wood used in construction; thrives in wet soil • Syn: ↑swamp oak, ↑Quercus bicolor • Hypernyms:… …   Useful english dictionary

  • swamp post oak — pikulialapis ąžuolas statusas T sritis vardynas apibrėžtis Bukinių šeimos medieninis augalas (Quercus lyrata), paplitęs Šiaurės Amerikoje. atitikmenys: lot. Quercus lyrata angl. overcup oak; swamp post oak šaltinis Valstybinės lietuvių kalbos… …   Lithuanian dictionary (lietuvių žodynas)

  • swamp post oak — noun : overcup oak …   Useful english dictionary

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