Quercus stellata

Source: Wikipedia, the free encyclopedia.
"Post Oak" redirects here. For other uses, see Post Oak (disambiguation).

Post oak
The Houston Campsite oak in Grapevine Springs Preserve, Coppell, Texas

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this 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. stellata
Binomial name
Quercus stellata
Wangenh.
Natural range of Quercus stellata
Synonyms[2]
List
  • Quercus alba var. minor Marshall
  • Quercus floridana Shuttlew. ex A.DC.
  • Quercus fusca Raf.
  • Quercus gonoloba Raf.
  • Quercus heteroloba Raf.
  • Quercus lobulata Sol. ex Sm.
  • Quercus minor (Marshall) Sarg.
  • Quercus obtusiloba Michx.
  • Quercus villosa Walter

white oak section. It is a slow-growing oak that lives in dry areas on the edges of fields, tops of ridges, and also grows in poor soils, and is resistant to rot, fire, and drought
. Interbreeding occurs among white oaks, thus many hybrid species combinations occur. It is identifiable by the rounded cross-like shape formed by the leaf lobes and hairy underside of the leaves.

Taxonomy

The specific epithet stellata is Latin for "star";[3] it is named this because the trichome hairs on the bottom of the leaves are stellate[4] or star-shaped. Several variants of Q. stellata were named by American botanist Charles Sprague Sargent. The variety most recognised by the United States Forest Service is Q. stellata var. paludosa Sarg (delta post oak).[5]

Varieties

Varieties include:[6]

  • var. margarettiae (Ashe) Sarg.
  • var. paludosa Sarg.
  • var. boyntonii (Beadle) Sarg.
  • var. anomala Sarg.
  • var. attenuata Sarg.
  • var. araniosa Sarg.
  • var. palmeri Sarg.
  • var. parviloba Sarg.
  • var. rufescens Sarg.

Hybrids

Hybrids[4]
Hybrid Name Q. stellata x <sp.>
Q. × stelloides E. J. Palmer Q . prinoides
Q. × mahloni E. J. Palmer Q . sinuata var. breviloba
Q. × pseudomargaretta Trelease Q . margaretta
Q. × sterretti Trelease Q . lyrata
Q. × macnabiana Sudworth Q . sinuata
Q. × guadalupensis Sargent Q . macrocarpa
Q . × fernowi Trelease Q . alba
Q. × bernardensis W. Wolf Q . montana

Description

1812 illustration[7]

Post oak is a relatively small

tomentose (densely short-hairy) beneath. The branching pattern of this tree often gives it a rugged appearance. The acorns are 1.5–2 cm (5⁄8–3⁄4 in) long, and are mature in their first summer.[4]

Similar species

Both Quercus stellata and

white oaks.[8] In the white oak section, Q. stellata is a sister taxon with Q. alba.[9] Q. stellata is sold and distributed as white oak. One identifiable difference between the two trees is that Q. stellata is 'hairy' on the underside of the leaf.[10]

Distribution and habitat

Q. stellata is found in the eastern and Midwestern United States both inland and along the coast, then in a narrow range along the eastern coast from Massachusetts to Florida, then westward to Texas, and inland to Iowa. Normally found at the edge of a forest, it typically grows in dry, sandy areas, deficient of nutrients.[10]

Ecology

Q. stellata has the ability to survive fires by having thicker bark. It is useful for fire surveys where the tree rings are used to get a fire history of an area. A tree ring survey of 36 trees in Illinois provided a 226-year tree ring record that indicated that many Q. stellata persisted through annual fire return intervals of 1.44 fires/year for over 100 years.[11]

It is used for food for deer, turkeys, squirrels, and other rodents, but because the nuts contain tannin, it is toxic to cattle.[5] A recent study in Kansas concluded that deer browsing reduces post-oak recruitment in canopy gaps generally in the sapling phase.[12]

Uses

Because of its ability to grow in dry sites, attractive crown, and strong horizontal branches, it is used in

stair risers and treads, flooring, pulp, veneer, particle board, fuel, and its namesake fence posts.[5] It is one of the most common types of wood used for Central Texas barbecue
.

References

  1. doi:10.2305/IUCN.UK.2015-4.RLTS.T194236A2305500.en
    . Retrieved 12 November 2021.
  2. ^ "Quercus stellata". 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. ^ Mahoney, Kevin D. "Latin Definition for: stellatus, stellata, stellatum (ID: 35675) - Latin Dictionary and Grammar Resources - Latdict". latin-dictionary.net. Retrieved 2016-11-16.
  4. ^ a b c Nixon, Kevin C. (1997). "Quercus stellata". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 3. New York and Oxford: Oxford University Press – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. ^ a b c Stransky, John J. "Quercus stellata Wangenh.--post oak." Silvics of North America 2 (1990): 738–743.
  6. ^ "Tropicos - quercus stellata Search". www.tropicos.org. Retrieved 2016-11-10.
  7. ^ illustration from Histoire des arbres forestiers de l'Amérique septentrionale, considérés principalement sous les rapports de leur usages dans les arts et de leur introduction dans le commerce ... Par F.s André-Michaux. Paris, L. Haussmann,1812-13. François André Michaux (book author), Pierre-Joseph Redouté (illustrator), Renard (engraver)
  8. ISSN 0003-4312
    .
  9. PMID 11607170
    .
  10. ^ a b Stein, John D., Denise Binion, and R. E. Acciavatti. "Field guide to native oak species of eastern North America." (2003): 96-97.
  11. S2CID 86503496. ProQuest 854839641
    .
  12. ^ Cory, B. J., & Leland Russell, F. (2022). Deer browsing and light availability limit post oak (Quercus stellata) sapling growth and post-fire recovery in a xeric woodland. Forest Ecology and Management, 519, 120346-. https://doi.org/10.1016/j.foreco.2022.120346
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