''Ulmus'' × ''mesocarpa'' M. Kim & S. Lee is a natural

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...

elm Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North ...

which is a cross of ''

Ulmus macrocarpa ''Ulmus macrocarpa'' Hance, the large-fruited elm, is a deciduous tree or large shrub endemic to the Far East excluding Japan. It is notable for its tolerance of drought and extreme cold and is the predominant vegetation on the dunes of the Khorc ...

'' with Japanese elm ''Ulmus davidiana'' var. ''japonica'' discovered on

Seoraksan Seoraksan is the highest mountain in the Taebaek mountain range in the Gangwon Province in eastern South Korea. It is located in a national park near the city of Sokcho. After the Hallasan volcano on Jeju Island and Jirisan in the south, Se ...

(Mount Sorak) near the city of

Sokcho Sokcho ( ko, 속초; ()) is a city in Gangwon Province, South Korea. It is located in the far northeast of Gangwon. The city is a major tourist hub, and a popular gateway to nearby Seoraksan national park. Sokcho is home to the few lakes: Yeong ...

on the eastern coast of South Korea. The tree is endemic to the provinces of Gangwon-do, Injegun, Bukmyeon, Yongdaeri, and Baekdamsa.Kim, Muyeol & Lee, Sangtae (1989). ''Korean J. Pl. Taxon.'' 19(1), 31–78 (in Korean) (1989)

Description

A small tree < 5 m high, typically intermediate between its parents, the generally

obovate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ...

leaves 7–8 cm long, asymmetric at the base, with apices

acuminate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ...

to caudate and an average of 31 teeth. The petioles are 6–8 mm long. The obovate samarae are < 20 mm long by 16 mm wide.

Pests and diseases

Not known.

Cultivation

Now in cultivation in the US and UK.

Synonymy

*''Ulmus davidiana'' var. ''japonica'' f. ''suberosa'' Nakai

Accessions

;North America *

Morton Arboretum The Morton Arboretum, in Lisle, Illinois, United States, is a public garden, and outdoor museum with a library, herbarium, and program in tree research including the Center for Tree Science. Its grounds, covering 1,700 acres (6.9 square kilometres ...

, Lisle, Illinois, US. Acc. details not known. ;Europe *

Grange Farm Arboretum The Grange Farm Arboretum is a small private arboretum comprising 3 hectares accommodating over 800 trees, mostly native and ornamental species or cultivars, notably oaks, ashes, walnuts and elms, growing on a calcareous loam.Ostler, J. (2009) ...

Sutton St James Sutton St James is a village and civil parish in the South Holland district of Lincolnshire, England, about south-west of Long Sutton. Lying in the Lincolnshire Fens, Sutton St James did not exist at the time of the 1086 ''Domesday Book''. Su ...

, Lincolnshire, UK. Juvenile trees (2015) from cuttings ex. Morton Arboretum on ''U. glabra'' rootstocks. Acc. no. 1101.

Nurseries

;Europe *Pan-global Plant

Frampton on Severn Frampton on Severn is a village and civil parish in Gloucestershire, England. The population is 1,432. Geography The village is approximately south of Gloucester, at . It lies on the east bank of the River Severn, and on the west bank of the ...

Gloucestershire Gloucestershire ( abbreviated Glos) is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn and the entire Forest of Dean. The county town is the city of Gl ...

, UK.

References

Plant nothospecies Flora of Korea Ulmus articles missing images mesocarpa Ulmus hybrids {{Ulmaceae-stub