Cornus kousa, 🌸 Cornaceae, kousa dogwood, 💐 Chinese dogwood, Korean dogwood,and Japanese dogwood at the Agakhan Park & Museum

Synonyms are Benthamia kousa and Cynoxylon kousa.[7] It is a plant native to East Asia including Korea, China and Japan.[2][8] Widely cultivated as an ornamental, it is naturalized in New York State.[9]
Cornus kousa

Conservation status
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Least Concern (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom:
Plantae
Clade:
Tracheophytes
Clade:
Angiosperms
Clade:
Eudicots
Clade:
Asterids
Order:
Cornales
Family:
Cornaceae
Genus:
Cornus
Subgenus:
Cornus subg. Syncarpea
Species:
C. kousa
Binomial name
Cornus kousa
F.Buerger ex Hance
Synonyms
Benthamia kousa (F.Buerger ex Hance) Nakai
Cynoxylon kousa (F.Buerger ex Hance) Nakai

Description
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Like other Cornus, C. kousa has opposite, simple leaves, 4–10 cm long. The tree is extremely showy when in bloom, but what appear to be four, white petals are actually four spreading bracts below the cluster of inconspicuous yellow-green flowers. The blossoms appear in late spring, weeks after the tree leafs out.
It can be distinguished from the flowering dogwood (Cornus florida) of eastern North America by its more upright habit, flowering about a month later, and by the pointed rather than rounded flower bracts.
The fruit is a globose pink to red compound berry 2–3 cm in diameter, though these berries tend to grow larger towards the end of the season and some berry clusters that do not fall from the tree exceed 4 cm. It is edible, with a sweet and creamy flavour, and is a delicious addition to the tree's ornamental value. The fruit is sometimes used for making wine.[10]
It is resistant to the dogwood anthracnose disease, caused by the fungus Discula destructiva, unlike C. florida, which is very susceptible and commonly killed by it; for this reason, C. kousa is being widely planted as an ornamental tree in areas affected by the disease.[8]
Fall foliage is a showy red color.

Varieties, hybrids and cultivars
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There are two recognized subspecies / varieties:
Cornus kousa F.Buerger ex Hance[11] or Cornus kousa Hance subsp. kousa – Japanese dogwood, native to Japan and Korea.[12]
Cornus kousa Hance subsp. chinensis (Osborn) Q. Y. Xiang[13] – Chinese dogwood, native to China.[14] This variety supposedly flowers more freely and produces larger flower bracts, with leaves that are also said to be larger than average. The validity of this variety, however, is questioned by some authorities.[15]

Most are slower growing. The pattern may be unstable, plus the plants can produce green growth reversions. It benefits from siting in some shade.
'Wolf Eyes'[15] Variegated form with leaves that show a uniform white margin. The leaf margins are often prominently wavy. In fall, the leaves develop attractive pink to red coloration. Shrubby and slow-growing, to 10' tall and wide. This is a very popular cultivar. The variegation pattern is quite stable and resistant to burning. A shaded planting site is desirable.

AGM cultivars
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As of July 2017, the following cultivars have gained the Royal Horticultural Society's Award of Garden Merit:[19]
'John Slocock'[20]
'Miss Satomi'[18]
'Summer Fun'[21]
'Teutonia'[22]
'Wolf Eyes'[23]
var. chinensis 'China Girl'[24]
var. chinensis 'Wisley Queen'[25]

Culinary and food usage
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kousa has edible berries. The soft pulp is sweet with a similar flavour to a ripe persimmon but the presence of hard seeds that are well attached to the pulp can be inconvenient when eaten directly. The rind of the berries is usually discarded because it has a bitter taste, although it is edible. The seeds are usually not eaten, but could be ground into jam and sauces. While less popular than the berries, young leaves can also be consumed

Source: Wikipedia

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