2. Calyx tube cup-shaped.

 

      3. Calyx lobe straight, margin minutely serrate.

         4. Outer bud scale hair dense

P. ×yedoensis 소메이요시노벚나무

         4. Outer bud scale hair sparse

P. ×nudiflora 왕벚나무

      3. Calyx lobe revolute, margin entire

P. avium 양벚나무

   2. Calyx tube vase-shaped.

      5. Branchlets pendulous

P. spachiana 처진올벚나무

      5. Branchlets ascending

P. spachiana f. ascendens 올벚나무

1. Style glabrous.

   6. Calyx margin minutely serrate

P. speciosa 왜벚나무

   6. Calyx margin entire.

      7. Pedicel glabrous.

         8. Inflorescences corymbose with peduncles

P. jamasakura 벚나무

         8. Inflorescences umbellate with short peduncles or nearly no peduncles

P. sargentii 산벚나무

      7. Pedicel pubescent.

         9. Inflorescences corymbose with peduncles

P. serrrulata var. pubescens 잔털벚나무

         9. Inflorescences umbellate with short peduncles or nearly no peduncles.

            10. Branchlet straight.

               11. Flowers single

P. verecunda var. verecunda 개벚나무

               11. Flowers double

P. verecunda var. semiplena 만첩개벚나무

            10. Branchlet pendulous

P. verecunda var. pendula 처진개벚나무