Macrosepalum

Rhododendron macrosepalum

  • Macrosepalum
  • Macrosepalum
  • Macrosepalum
  • Macrosepalum
  • Macrosepalum
  • Macrosepalum
  • Flower name
    Macrosepalum
  • Scientific name
    Rhododendron macrosepalum
  • Alias黐躑躅, Macrosepalum
  • Place of originJapan
  • Place of floweringFields and footpaths
  • Flowering seasonApril, May

What is Macrosepalum

Macrosepalum is a Japanese unique species and is a (semi) deciduous leaf shrub of the azalea family. It lives in the hills of Okayama and Shikoku from south Shizuoka prefecture. The bark has a dark gray brown color. It is sticky with flowers, sticky liquid from the calyx, branch gland hair, so it defends insects. It is the origin of flower name that sticky mucus resembles "birds". Among insects, there is a stink bug that lives in this kind of glandular hair. In the spring, flowers with dark red spots scattered on white grounds and purple grounds will bloom. The flower has a funnel shape and its tip is 5 deep. In autumn, after red leaves turn red brown, leaves other than the leaves around the winter bud fall.

Common name: Macrosepalum, Scientific name: Rhododendron macrosepalum, habitat distribution: Shizuoka prefecture sub-south Shikoku environment: the forest edge of the hills, Alias: Macrosepalum, Place of origin: Japan, Life: (half) fallen leaf shrubs, tree height: 1-2 m, bark color: dark gray brown, leaves: glandular hair on both sides, leaves: alternate, leaf height: 2-6 cm, Flowering style: several, flowering period: April to May, flower color: dark red spots are scattered in white background and purple ground, flower shape: funnel shape, tip is 5 deep, number of petals: 5, flower diameter: 5 ~ 6 cm, Feature: The sticky liquid with gland hair on the flower, calyx, leaves, branch is sticky.


  • Order
    Ericales
  • Family
    Ericaceae
  • Genus
    Rhododendron
  • Species
    R. macrosepalum
  • Type of flower
    Radial symmetrical flower
  • Array of flower
    Gross inflorescence
  • Petal shape
    Funnel/trumpet shaped
  • Leaf type
    Oval
  • Edge of the leaf
    Serrated
  • Life type(a half) deciduous shrubs
  • Flower colorsPink White
  • Colors of the leavesGreen
  • Fruit colorGreen
  • Height100.0 ~ 200.0 cm
  • Diameter of flower5.0 ~ 6.0 cm

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