Variations 
Prunus serrulata var. lannesiana
This tree varies from the species by having long pointed teeth along the margins of the leaves and produces pale pink fragrant flowers that are purplish-red at the base. Photographs in the gallery were taken at Tokyo Botanic Gardens.

var. lannesiana 'Azuma-nishiki'
This small tree has a short reddish brown trunk with long spreading branches that form an open rounded crown.  During spring the deep pink buds open to fully double pale pink flowers that form dense clusters along the branches before the foliage.

var. lannesiana  'Chrysanthemoides'
This large shrub to small tree grows to 4 m (12 ft) tall with a short greyish trunk and spreading branches that form a rounded crown.  During spring it produces clusters of tiny Carman red double flowers up to 10 mm (⅜ in) wide with the coppery coloured new growth.

var. lannesiana 'Kanzan' 	syn. 'Sekiyama'
This popular Japanese flowering cherry grows to 10 m (30ft) with a stout coppery-red peeling trunk and spreading-pendant branches to ground level forming a domed canopy.  During spring the new foliage has a bronze tinge becoming green and accompanied with pendant clusters of long stemmed deep pink double flowers up to 12 mm (½in) wide. In autumn the leaves turn bronze-orange before falling and are vibrant colour contrast along borders.  

var. speciosa
This small tree grows to 5 m (15 ft) tall and wide with a short dark brown trunk and widely spreading branches that form a dense crown.  The new growth has a bronze tinge and matures to dark green. The saucer shaped single white flowers are suffused in pale pink from the centre and appear during early spring in large clusters amongst the new foliage.

Cultivars
'Amanogawa'
This shrub to small tree grows to 6m (20ft) with spreading branches forming a rounded crown. During spring it produces semi double, pale pink to white, fragrant flowers in clusters.

'Daikoku'
This upright spreading shrub to small tree can attain a height of 10 m (30ft) with a coppery red, peeling trunk and is covered in dark green lanceolate leaves with an acuminate apex the turn yellow during autumn.  
It produces bowl shaped large fragrant double flowers with over 40 petals that are pink, tinged with pale pink, singularly or in groups up to four over the plant during spring. The flowers are followed by avoid reddish fruit that is up to 12 mm (½in) long and the tree is commonly used in parks and gardens as a specimen or in group plantings.

'Fugenzo'
This small tree grows to 8m (25ft) with spreading branches forming a vase habit. During spring it produces large double pink flowers in clusters.

'Gioiko'
This unusual small tree grows to 8m (25ft) with spreading branches forming a vase habit. During early spring it produces clusters of creamy green saucer-shaped double flowers that are highlighted in pink from the base extending along the central veins. It is not commonly cultivated and may be difficult to obtain requiring a specialist nursery.

'Ichiyo'	Japanese Flowering Cherry, Hisakura Cherry
This small tree grows to 6 m (20ft) tall and wide with spreading branches with dark green foliage forming a rounded crown. During mid spring it produces clusters of reddish buds that open in semi double to double pale pink flowers with over 30 petals in each row appearing prolifically over the tree. It prefers an open sunny position and grows well in soil that is neutral tending alkaline.  It can be planted in zones 5-9 and is suitable as a feature tree in a small or Japanese garden.

'Joh nioi'
This small tree grows to 6 m tall with a short trunk and spreading branches that form a rounded crown. The dark green serrated leaves are tinged bronze when young and during mid to late spring it produces pendant clusters of single white saucer-shaped flowers.  It is planted parks and gardens as it showed tree or used as a specimen in small or Japanese gardens.

'Mikuruma-gaeshi'
This small deciduous tree is upright with ascending branches forming a small rounded crown up to 10 m (30ft) tall.  The bronze new growth becomes dark green, turning red and yellow during autumn and the delight Apple fragrant white flowers are pink in bud appearing in spring.

'Shimidsu Sakura'
 This shrub has many branches and grows to 4m (12ft) tall forming a bushy habit.  During spring it produces ruffled deep pink flowers in clusters.

'Shujaku'
This shrub to small tree grows to 5 m (15ft) tall and wide with spreading branches that form a compact rounded crown with green foliage that is tinged copper.  
During late spring with new foliage it produces abundant very large double pale pink flowers on a long pedestal singularly and in clusters. It is an ideal specimen plant for a park or large garden and can be used in avenue planting.  It is suitable for cool climates, and I have seen it growing happily in Tokyo and Edinburgh.

'Okumiyako'
This small tree has spreading branches that form an open rounded crown. It produces clusters or white flowers that are flushed pink during spring with the new foliage. It is planted in avenues in large gardens or used as a specimen in a Japanese garden.

'Shirotae'	  'Mt Fuji'
This deciduous tree is upright with spreading to horizontal branches to 6m (20ft) tall and has reddish autumn foliage. The pink buds open to reveal fragrant double white pendant flowers that appear in clusters during spring and the plant may be grafted onto standards that are up to 2 m (6 ft) tall. This tree is planted in gardens as a specimen and is suitable for cool mountain regions.

'Shirofugen'
This tree is upright with spreading arching branches and produces pendant white flowers that are suffused in pink.

'Takasago'
This small tree grows to 5 m (16ft) tall by 4 m (12ft) wide with a greyish trunk and spreading branches that form a compact rounded crown.  It has bronze-green new leaves and during spring the pink buds produces semi-double pale pink to darker pink saucer-shaped flowers in clusters that cover the tree, giving a stunning display. 
It is used in small Japanese gardens or in streetscapes and parks as a feature plant. The exact parents of this plant are undecided but the plant is commonly used in cool climate landscapes.

'Ukon'
This vigorous small tree grows to 5 m (16ft) tall and wide with upright spreading branches forming a rounded crown. The new growth is a bronze green maturing to green and the finely serrated 110 mm (4⅜in) long ovate leaves turn orange-yellow during autumn. 
 It produces pink tinged buds that open to semi double pink flowers that fade to white appearing in large clusters from mid to late spring.  It is planted in small gardens along borders, giving an excellent floral display and autumn colour.