Japanese heath

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Rhododendron japonoheptamerum Kitam.

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

HOME > Plant list (植物リスト) > Ericaceae (ツツジ科) > Rhododendron japonoheptamerum var. hondoense

Rhododendron L. (ツツジ) in Japan

Rhododendron japonoheptamerum Kitam.
Lifeform: evergreen shrub, with 1-5 m in height
Mycorrhiza: ericoid
var. hondoense (Nakai) Kitam.
Honshakunage (ホンシャクナゲ, 本石楠花), Japanese heath
Distribution: endemic to Japan (south to Niigata in Honshu and Shikoku)
Habitat: rocky cliffs and ridges on mountains
Use: gardening

Synonyms: Rhododendron metternichii Siebold et Zucc. var. hondoense Nakai. Rhododendron degronianum Carriére ssp. heptamerum (Maxim.) H. Hara var. hondoense (Nakai) H. Hara

f. leucanthum (Nakai) T. Yamaz. (シロバナホンシャクナゲ)

var. japonoheptamerum
Tsukushisyakunage (ツクシシャクナゲ, 筑紫石楠花)
Distribution: endemic to Japan (Kii Peninsula, southern Shikoku and Kyushu) Synonyms:

Rhododendron metternichii Siebold et Zucc.
Rhododendron japonicum (Blume) C. K. Schneid.
Rhododendron degronianum Carriére ssp. heptamerum (Maxim.) H. Hara

f. albiflorum (Takeda) T.Yamaz. (シロバナツクシシャクナゲ)

var. kyomaruense (T. Yamaz.) Kitam. (キョウマルシャクナゲ)
var. okiense T. Yamaz. (オキシャクナゲ)

Rhododendron japonoheptamerum var. hondoense in Japan

var. hondoense (ホンシャクナゲ)

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[1-3] in the Wakayama Experimental Forest of Hokkaido University on June 26 2024.