Everything about Sorbus Alnifolia totally explained
Sorbus alnifolia (
Alder-leafed Whitebeam or
Korean Whitebeam;
Chinese: 水榆花楸
shui yu hua qiu) is a species of
whitebeam native to eastern
Asia in
China,
Korea and
Japan.
It is a medium-sized
deciduous tree growing to 10–20 m tall with a trunk up to 30 cm diameter and grey
bark; the crown is columnar or conic in young trees, becoming rounded with age, with branches angled upwards, and slender shoots. The
leaves are green above, and thinly hairy with white hairs beneath, 5–10 cm long and 3–6 cm broad, simple, usually unlobed (but see varieties, below), broadest near the base, with serrated margins and an acute apex. The autumn colour is orange-pink to red. The
flowers are 10–18 mm diameter, with five white petals and 20 yellowish-white stamens; they're produced in
corymbs 4–8 cm diameter in late spring. The
fruit is a globose
pome 8–15 mm diameter, bright red, with a dimple at the apex; they're mature in mid autumn.
There are three
varieties:
[
]- Sorbus alnifolia var. alnifolia. Leaves unlobed. Throughout the range of the species.
- Sorbus alnifolia var. angulata S.B.Liang. Leaves weakly lobed; fruit oblong. Northeast China, Korea.
- Sorbus alnifolia var. lobulata Rehder. Leaves weakly lobed; fruit globose. Shandong Province.
It has sometimes been placed in a separate genus of its own as Micromeles alnifolia, differing from other whitebeams in the deciduous sepals on the fruit (persistent in other whitebeams), but genetic evidence places it close to Sorbus aria.[
]Cultivation and uses
It is occasionally grown as an ornamental tree in northern Europe, primarily for its autumn colour. The cultivar 'Skyline' has been selected for its fastigiate growth.[Further Information]
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