(First upload on December 21 2007. Last on June 16 2024) [ 日本語 | English ]
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) > Ledum palustre
Ledum L. (イソツツジ), labrador teaL. palustre L. s.l., one species in JapanLifeform: evergreen shurb Habitat: sunny sites, such as volcanoes (火山) and wetlands (湿原) ssp. diversipilosum (Nakai) Hara
var. nipponicum Nakai (Iso-tsutsuji, イソツツジ, 磯躑躅), Labrador tea
Rhododendron diversipilosum (Nakai) Harmaja |
var. diversipilosum (エゾイソツツジ/カラフトイソツツジ) Ledum palustre L. var. diversipilosum Nakai ssp. palustre var. decumbens Ait. (ヒメイソツツジ/ホソバイソツツジ)Distribution: eastern Siberia - Canada (including Mounts Daisetsu and Mount Kitami-Murii in Hokkaido, Japan) Synonyms:
L. decumbens (Ait.) Small. Distribution: Alaska - Greenland |
Synonyms:
L. groenlandicum Oeder |
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[1] along the seacoast of Hamatonbetsu, where Vaccinium vitis-idaea established, in Sarufutsu Village, northern Hokkaido, on August 27 2015. [2] in Shinsen Bog, central Hokkaido, on June 24 2007. [3/4] at the middle slope of Mount Tarumae on June 12 2008. [5] near the bothie (hut escaped from mountainous disasters) of Mount Tokachi, central Hokkaido, on June 27 2017. [6] at the middle slope of Mount Meakan on June 25 2013. [7/8] in a peatland mined in 1972, Sarobetsu mire, northern Hokkaido, on June 12 2019. [9] in Shibetsu wetland, eastern Hokkaido, on Augsut 28 2020. [10] on the southwestern slope of Mount Koma (flora) on July 10 2017. [11] in Utasai wetland, southern Hokkaido, on June 11 2024.