Enkianthus campanulatus - Enkianthus campanulatus

Japanese: ドウダンツツジ - どうだんつつじ
Enkianthus campanulatus - Enkianthus campanulatus

A deciduous shrub of the Ericaceae family (APG classification: Ericaceae). It grows to 2-3 meters tall. The branches are thin and branch out into a wheel shape. The leaves are gathered in whorls at the ends of the branches, obovate, 3-4 cm long, pointed at both ends, with fine serrated edges, and brown hairs below the midvein on the underside. The leaves turn a beautiful red in autumn. In April, 2-4 small white flowers bloom in a scattered pattern facing downwards along with the new leaves. The corolla is urn-shaped, 7-8 mm long, with 5 lobes at the edge. There are 10 stamens. The capsule is narrowly oblong, about 7 mm long, and faces upwards. It grows in mountainous areas, and is distributed from Honshu west of Shizuoka Prefecture to Kyushu. The name was derived from the fact that the radial branches resemble the legs of a knotted lighthouse that was used for nighttime illumination in the past, and was later corrupted from the name "lighthouse azalea." It is widely planted as a garden tree or hedge. It tolerates pruning well and is easy to propagate by cuttings. There are more than a dozen other species in the Enkianthus genus in East Asia, including Enkianthus sarasa.

[Yoshio Kobayashi April 16, 2021]

[Reference item] | Sarasa Enkianthus
Enkianthus campanulatus
The leaves are whorled at the ends of the branches and are obovate. In April, small white flowers bloom downward along with the new leaves. The corolla is urn-shaped and 7-8 mm long. ©Seishohmaru ">

Enkianthus campanulatus

Enkianthus campanulatus in autumn
It is widely planted as a garden tree or hedge, and turns beautiful red in autumn. ©Seishohmaru ">

Enkianthus campanulatus in autumn


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ツツジ科(APG分類:ツツジ科)の落葉低木。高さ2~3メートル。枝は細く、車輪状に分枝する。葉は枝先に輪生状に集まり、倒卵形で長さ3~4センチメートル、両端はとがり、縁(へり)に細かい鋸歯(きょし)があり、裏面の主脈下部に褐色の毛がある。秋には美しく紅葉する。4月、新葉とともに小さな白色花を2~4個、散状に下向きに開く。花冠は壺(つぼ)形で長さ7~8ミリメートル、縁(へり)は5裂する。雄しべは10本。蒴果(さくか)は狭長楕円(だえん)形で長さ約7ミリメートル、上を向いてつく。山地に生え、静岡県以西の本州から九州に分布する。名は、放射状に出る枝の状態が、昔夜間の明かりに用いた結び灯台の脚に似ることから、灯台ツツジといわれ、それから転訛(てんか)した。庭木、生け垣として広く植えられる。刈り込みに強く、挿木が容易である。ドウダンツツジ属はほかにサラサドウダンなど東アジアに十数種ある。

[小林義雄 2021年4月16日]

[参照項目] | サラサドウダン
ドウダンツツジ
葉は枝先に輪生状に集まり、倒卵形。4月、新葉とともに小さな白色花を下向きに開く。花冠は壺形で長さ7~8mm©Seishohmaru">

ドウダンツツジ

ドウダンツツジの紅葉
庭木、生け垣として広く植えられ、秋には美しく紅葉する©Seishohmaru">

ドウダンツツジの紅葉


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