Asarum nipponicum

  • Asarum nipponicum_img_0
    Asarum nipponicum @ Kyoto Botanical Garden
  • Asarum nipponicum_img_1
    Asarum nipponicum @ Kyoto Botanical Garden
  • Asarum nipponicum_img_2
    Asarum nipponicum @ Akatsuka Botanical Garden

Basic information

Flower Name
Asarum nipponicum
Formal Name
wild ginger
perennial grass


What is Asarum nipponicum

Asarum, kan-aoi, or wild ginger (scientific name: Asarum spp.) is native to East Asia in Japan, and is a perennial plant in the Aristolochiaceae. It grows in the dark place under the tree and growth is surprisingly slow. It is said that about 100 kinds of asarums exist in East Asia, and half in Japan.

Speaking of asarum in Japan, it is an endemic species of Asarum nipponicum (Kanto kan-aoi), which is native to the eastern Kanto region. 

Generic name: Asarum nipponicum, Kan-Aoi, Scientific name: Asarum nipponicum, Another name: wild ginger, Asarum , Origin: Japan to East Asia, environment: dimly lit area under mountainous area, living type: perennial grass, plant height: 5 to 20 cm, stem: short, axial color: dark purple / green, nature: ground, phlegm: alternation, leaf shape: pointed tip Heart shaped at the base, heart color, leaf color: white patch on dark green, number of leaves: several pieces on stem, petiole: present, leaf length: 7 to 10 cm, leaf width: 5 cm, radially symmetric flower, flower: flower There is no degeneration. It looks like a flower: a scale formed by a joint venture of three moths, flower color (mochi): rust color (dark purple), yellowish green, purple, number of scale pieces: 3. Flower-shaped (sticky cylinder-shaped): A bell-shaped or a bowl-shaped, which forms a test cylinder in which three pieces of scale adhere to each other: The tip is split into three and opened flat. It depends on the species. Flowering stage: October to December, February to May, barrel diameter: 1 to 2 cm, barrel length: 1 to 2 cm, number of stamens: 12, number of stamens: 6, breeding: seeds, fruiting stage: Early summer, aroma: in the stems, feeding grass of Gifu butterfly.

●Species of Asarum, kan-aoi
Asarum nipponicum: Asarum that blooms in eastern Japan.

Asarum minamitanianum : The leaves and flowers are large, and the tip of the cylinder becomes a long string.

Asarum asaroid : The leaves and flowers are large, and there is a constriction in the cylinder.

Usuba saishin (Asiasarum sieboldii) : Fallen leaves and, heart shaped leaves and small testicles.

Detailed information

A. nipponicum
Flower type
Actinomorphic Flower
Flower array
Solitary Inflorescence
Petal shape
Leaf type
Leaf edge
Entire Fringe
Flowering place
cultivated variety Low mountain
Brown, Green
5 ~ 20 [cm]
1 ~ 2

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