Scandosorbus intermedia
Scandosorbus intermedia | |
---|---|
Leaves | |
Ripe fruit | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Genus: | Scandosorbus |
Species: | S. intermedia
|
Binomial name | |
Scandosorbus intermedia | |
Synonyms | |
Scandosorbus intermedia or, formerly, Sorbus intermedia, the Swedish whitebeam,[1] is a species of whitebeam found in southern Sweden, with scattered occurrences in Estonia, Latvia, easternmost Denmark (Bornholm), the far southwest of Finland, and northern Poland.[2][3]
Description
It is a medium-sized deciduous tree growing to 10–20 m (33–66 ft) tall with a stout trunk usually up to 60 cm (24 in), but sometimes as much as 2–3 m (6.6–9.8 ft) in diameter,[citation needed] and grey bark; the crown is dome-shaped, with stout horizontal branches. The leaves are green above, and densely hairy with pale grey-white hairs beneath, 7–12 cm (2.8–4.7 in) long and 5–7 cm (2.0–2.8 in) broad, with four to seven oval lobes on each side of the leaf, broadest near the middle, rounded at the apex, and finely serrated margins. The autumn colour is dull yellowish to grey-brown. The flowers are 15–20 mm (0.59–0.79 in) diameter, with five white petals and 20 yellowish-white stamens; they are produced in corymbs 8–12 cm (3.1–4.7 in) diameter in late spring. The fruit is an oval pome 15 mm (0.59 in) long and 10 mm (0.39 in) in diameter, orange-red to red, maturing in mid autumn. The fruit is dryish, and eaten by thrushes and waxwings, which disperse the seeds.[2][4]
Sorbus intermedia is a triple hybrid between
Habitat, cultivation and uses
In the Nordic countries, the tree typically grows in forests, pastures or forest edges.[7]
It is widely grown as an
References
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 26 June 2015. Retrieved 17 October 2014.
- ^ ISBN 0-00-220013-9.
- ^ Den Virtuella Floran: Sorbus intermedia (in Swedish; with maps)
- ISBN 0-00-212035-6.
- ^ Nelson-Jones, E.B.; Briggs, D.; Smith, A.G. (2002). The origin of intermediate species of the genus Sorbus. Theoretical and Applied Genetics. 105(6–7): 953–963.
- ^ Chester, M.; Cowan, R.S.; Fay, M.F.; Rich, T.C.G. (2007). Parentage of endemic Sorbus L. (Rosaceae) species in the British Isles: evidence from plastid DNA. Botanical Journal of the Linnean Society. 154(3): 291–304.
- ISBN 91-46-14833-7.
- ^ Clive A. Stace; R. van der Meijden; I. de Kort, eds. (2009). "Sorbus intermedia". Interactive Flora of North-west Europe. Leiden, the Netherlands: National Herbarium of the Netherlands, University of Leiden (NHN-L). A digital encyclopedia on CD-ROM.
- ISBN 978-0-521-42793-7.
- ^ Hansen, K. F. (1985). Bornholmsk røn, Seljerøn, vogeserrøn. Haven 85 (7/8): 421-423 (in Danish).
External links
- Sorbus intermedia - information, genetic conservation units and related resources. European Forest Genetic Resources Programme (EUFORGEN)