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(Upload on May 6 2017) [ 日本語 | English ]

Rhododendron serpyllifolium (A. Gray) Miq.






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Rhododendron L. (ツツジ) in Japan
Unzentsutsuji (ウンゼンツツジ, 雲仙躑躅), wild thyme azalea

this species is not distributed in Unzen region
called Kome-tsutsuji (コメツツジ) in Wakayama, avoid using this name

Lifeform: semi-evergreen shrub
Habitat: forest edges and rocky patches
Flower: pale pink
Mycorrhiza: ericoid
Use: gardening
var. albiflorum Makino (シロバナウンゼンツツジ)

f. usukiunzen T. Yamaz. (ウスキウンゼン)

var. serpyllifolium (ウンゼンツツジ)

Distribution: endemic to Japan (Izu Peninsula, Kii Peninsula, southern Shikoku and Osumi Peninsula)
f. album T. Yamaz. (シロウンゼン)

f. seigaiunzen T. Yamaz. (セイガイウンゼン)
索引

Rhododendron serpyllifolium in Japan


var. serpyllifolium (ウンゼンツツジ)

Rhodo1 Rhodo2 Rhodo3
[1-3] in front of the office building for Wakayama Experimental Forest of Hokkaido University, western Japan, on June 26 2024.

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