Marsh tea

Ledum palustre ssp.diversipilosum

  • Marsh tea
  • Marsh tea
  • Marsh tea
  • Marsh tea
  • Flower name
    Marsh tea
  • Scientific name
    Ledum palustre ssp.diversipilosum
  • Alias変種カラフトイソツツジ, 蝦夷磯躑躅, 変種樺太磯躑躅, marsh tea
  • Place of originHokkaido-Tohoku Takayama
  • Place of floweringHokkaido
  • Flowering seasonJune, July

What is Marsh tea

Marsh tea or Ezoisotsutsuji (scientific name: Ledum palustre ssp. Diversipilosum) is an endemic species of Hokkaido,and is an evergreen small shrub belonging to the family Ericaceae. It grows naturally in gravel fields and wetlands of alpine mountains from Hokkaido to Tohoku. Leaves are slender lanceolate form, cortex, thick, there are fine mesh patterns on the leaf table. It is characterized by dense brown hair on young branches and leaves. In the summer, flower stalks are stretched, the scattering inflorescences are extended from the tip, a large number of white small five-flowered flowers are attached, and it blooms in a spherical shape of about 5 cm. Ten long stamens grow from each floret. Leaves have sweetness and may be drunk as sweet tea, howevert it may contain grayanotoxin and cause headache or dizziness. It is also called varieties Caraft isotsutsuji , or simply is also isotsutsuji. it is said that Ezo was erroneously reported as iso, not because it blooms on the coast.

Common name: Marsh tea, scientific name: Ledum palustre ssp. Diversipilosum, ask : Ezoisotsutsuji ,Distribution: Hokkaido-area environment: high mountains, Northeast Japan and wetlands, living type: Evergreen small trees, height: 30 to 100 cm, leaf quality: cortical thick leaf fine weave pattern in the leaf: 3-5 cm, leaf width: 1 cm, leaf shape: lanceolate, leaf: back involve asymmetric flower, Discrete flowers, inflorescences form: corymbs, Corolla: 5 petaled flower, flowering: from June to July, flower, white, flower diameter: 5 cm, flower diameter: 1 cm,: petals five, 10 stamens: long stamens are.


  • Eye
    Ericales
  • Family
    Ericaceae
  • Genus
    Ledum
  • Species
    L. palustre ssp.diversipilosum
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Corymbose inflorescence
  • Petal shape
    Five-petal
  • Leaf type
    lanceolate
  • Edge of the leaf
    All edges
  • Life typeSmall evergreen shrub
  • Flower colorsWhite
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height30.0 ~ 100.0 cm
  • Diameter of flower1.0 ~ 1.0 cm

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