Primula reinii

Primula reinii

  • Primula reinii
  • Primula reinii
  • Primula reinii
  • Primula reinii
  • Primula reinii
  • Primula reinii
  • Flower name
    Primula reinii
  • Scientific name
    Primula reinii
  • Aliasオオミネコザクラ, 大峰小桜, Primula tosaensis
  • Place of originendemic to Japan
  • Place of flowering
  • Flowering seasonMay

What is Primula reinii

Koiwa sakura (primula reinii) is a perennial plant in the primrose family Primulaceae. This plant is similar to Iwazakura (Primula tosaensis), but one size smaller. In the spring, it produces short stems from the ground and sporadic inflorescences from the tips, which produce several flowers. The flowers are large compared to the height of the grass. The flowers are peach-colored and the central base is yellow. VU endangered II, with 5 deep lobes at the tip and 2 shallow petals. The major differences between small rock cherry (P. tosaensis) and rock cherry (P. treinii) are as follows
P. reinii is found in central Honshu (Kanto and Kii Peninsula), while P. tosaensis is found in western Japan (Kii Peninsula to Kyushu).
Flower diameter is 1.8 to 2.5 cm for small rock cherry (P. reinii) compared to 2.5 to 3 cm for rock cherry (P. tosaensis).
The leaf diameter is 3-7 cm for rock cherry (P. tosaensis) compared to 1.5-4 cm for small rock cherry (P. reinii).
Hairs on the back of the leaves are not present on rock cherry (P. tosaensis) but are present on small rock cherry (P. reinii).

Common name: Koiwa-zakura, Scientific name: Primula reinii, also known as Oominezakura , Height: 5-10 cm, Leaf shape: circular, Leaf diameter: 1.5-4 cm, Leaf margin: shallow, Leaf color: green, Flower color: pink, Flower diameter: 1.8-2.5 cm, Flowering period: May, Note: VU endangered II.


  • Eye
    Ericales
  • Family
    Primulaceae
  • Genus
    Primula
  • Species
    P. reinii
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Scattered inflorescence/ umbrella shape
  • Petal shape
    Tubular
  • Leaf type
    Round
  • Edge of the leaf
    Serrated
  • Life typeperennial plant
  • Flower colorsPink
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height5.0 ~ 10.0 cm
  • Diameter of flower2.5 ~ 3.0 cm

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