Quercus semecarpifolia is an Asian species of oak. It is native to the Himalayas and nearby mountains in Tibet, Afghanistan, India, Nepal, and Pakistan,[3] where it is referred to as kharsu.[4] It is classified in subgenus Cerris, section Ilex.[5][6]
Quercus semecarpifolia is an evergreen tree up to 30 metres (98 feet) tall. The leaves are up to 12 centimetres (4+3⁄4 inches) long, with a few teeth along the sides but rounded at the tip.[3][7]
It has been grown in middle Europe, Western Germany, winter-hardiness zone 7, withstanding -14 °C, without any damages. It gives a good, showy bush to small tree with lush green leaves.
The epithet semecarpifolia refers to a resemblance between the leaves of this species and those of Semecarpus anacardium.[7]
In its native range, it serves as a keystone species, exhibiting up to 80% dominance at elevations between 2700 and 3300 meters.[4] In areas where less degradation has occurred, Q. semecarpifolia reduces light at the forest floor, encouraging the growth of shade tolerant herbaceous species.[4] Local people make use of kharsu more frequently than other native oaks for food, animal fodder, fuel, and timber.[8] Its leaves are also known to support Antheraea proylei silk worms, goats,[9] and prevent slug infestations.[4]
^Qin, H. (2020). "Quercus semecarpifolia". IUCN Red List of Threatened Species. 2020. Retrieved 10 March 2023.
^"Quercus semecarpifolia Sm.". 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 Note that this website has been superseded by World Flora Online
^ abHuang, Chengjiu; Zhang, Yongtian; Bartholomew, Bruce. "Quercus semecarpifolia". Flora of China. Vol. 4 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
^ abcdRawat, Balwant; Rawat, Janhvi M.; Purohit, Sumit; Singh, Gajendra; Sharma, Pradeep Kumar; Chandra, Anup; Shabaaz Begum, J. P.; Venugopal, Divya; Jaremko, Mariusz; Qureshi, Kamal A. (2022). "A comprehensive review of Quercus semecarpifolia Sm.: An ecologically and commercially important Himalayan tree". Frontiers in Ecology and Evolution. 10. doi:10.3389/fevo.2022.961345. hdl:10754/681751. ISSN 2296-701X.
^Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017). "Appendix 2.1: An updated infrageneric classification of the oaks" (xls). figshare. doi:10.6084/m9.figshare.5547622.v1. Retrieved 2023-02-18.
^Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017), "An Updated Infrageneric Classification of the Oaks: Review of Previous Taxonomic Schemes and Synthesis of Evolutionary Patterns", in Gil-Pelegrín, Eustaquio; Peguero-Pina, José Javier & Sancho-Knapik, Domingo (eds.), Oaks Physiological Ecology. Exploring the Functional Diversity of Genus Quercus L, Tree Physiology, vol. 7, Cham.: Springer International Publishing, pp. 13–38, doi:10.1007/978-3-319-69099-5_2, ISBN 978-3-319-69099-5
^ abSmith, James Edward in Rees. 1814 The cyclopædia; or, Universal dictionary of arts, sciences, and literature. volume 29, pages not numbered, Quercus number 20
^Singh, Amit; Samant, S. S.; Naithani, Suneet (2021-09-01). "Population ecology and habitat suitability modelling of Quercus semecarpifolia Sm. in the sub-alpine ecosystem of Great Himalayan National Park, north-western Himalaya, India". South African Journal of Botany. 141: 158–170. doi:10.1016/j.sajb.2021.04.022. ISSN 0254-6299.
^Raju, J.; Sahoo, B.; Chandrakar, A.; Sankar, M.; Garg, A. K.; Sharma, A. K.; Pandey, A. B. (2015-04-01). "Effect of feeding oak leaves (Quercus semecarpifolia vs Quercus leucotricophora) on nutrient utilization, growth performance and gastrointestinal nematodes of goats in temperate sub Himalayas". Small Ruminant Research. 125: 1–9. doi:10.1016/j.smallrumres.2014.12.013. ISSN 0921-4488.
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