Eriophorum vaginatum

Eriophorum vaginatum

  • Eriophorum vaginatum
  • Eriophorum vaginatum
  • Eriophorum vaginatum
  • Eriophorum vaginatum
  • Flower name
    Eriophorum vaginatum
  • Scientific name
    Eriophorum vaginatum
  • Aliasスズメノケヤリ, 雀の毛槍, 綿菅, Cotton-sedge, Eriophorum vaginatum
  • Place of originhigh mountains of the northern hemisphere
  • Place of floweringHigh mountain, Sub-alpine
  • Flowering seasonMay, June

What is Eriophorum vaginatum

Eriophorum vaginatum, Cotton-sedge or Watasuge (scientific name: Eriophorum vaginatum) is an alpine perennial herb in the family Cyperaceae, which is native to the high mountains of the northern hemisphere.
A lot of stems come out from the rhizome and become a big plant, and many of them gather and form a community in the wetland such as Oze.
In early summer, one small pale yellow ear blooms at the end of a long, narrow flower stem.
The stringy floral capsules grow after the flowers and become spherical with white hairs (not flowers but fruit).

Generic name: Eriophorum vaginatum, Scientific name: Eriophorum vaginatum,
Also known as the sparrow's hair spear, Cotton-sedge,
Place of origin: Northern Hemisphere alpine, habitat: north of Honshu to Hokkaido,
environment: marshland, life type: alpine perennial, grass height: 30-60 cm.
Root leaves: pale yellow with grayish-black scales, spike length: 1-2 cm, flowering season: May-June. 
Fruit season (hairs): June to August; scion color (flower-like): white. 
Use: For ornamental purposes, wild vegetables.


  • Eye
    Poales
  • Family
    Cyperaceae
  • Genus
    Eriophorum
  • Species
    E. vaginatum
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Monopetal inflorescence
  • Petal shape
    Small ears
  • Leaf type
    Linear
  • Edge of the leaf
    Serrated
  • Life type alpine perennial herb
  • Flower colors Green
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height30.0 ~ 60.0 cm
  • Diameter of flower1.0 ~ 2.0 cm

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