(First upload on September 6 2008. Last on May 10 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) > Betulaceae (カバノキ科) > Alnus japonica
Alnus Mill. (ハンノキ)Hannoki (ハンノキ, 榛ノ木), Japanese alderYachihannoki (ヤチハンノキ, 谷地榛ノ木), commonly called Life form: deciduous shrub-tree Distribution: East Asia (China - Japan) Habitat: wet lowland (fen) ⇒ wetland (湿原) Field training on integrated environmental research (統合環境調査法実習) Use: tannin extract, bark and branch used as medicine (in China) |
Pollen allergy (花粉症): a small amount of pollens dispersed in early spring → person who has alder pollen allergy has high risk to develop white birch pollen allergy var. arguta Call., or f. arguta (Regel) H. Ohba (エゾハンノキ) var. koreana Call., f. koreana (Callier) H. Ohba (ケハンノキ), dense auburn hair on young shoots and leaves var. formosana (Burkill) Callier (タイワンハンノキ) |
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[1] close-up of female inflorescences (see males of A. maximowiczii). [1/2] at a forest edge near Utonai Lake on June 11 2008. [3] in Makunbetsu Swamp (マクンベツ湿原) on April 24 2010. [4] along Sakushukotoni River in the experimental farm of Hokkaido University, Sapporo, on July 28 2017. [5/6] along a stream near Onnenai Visitor Center in Kushiro Moor, eastern Hokkaido, on July 2 2014. ⇒ a giant tree (巨木) in Yachidamo Park (Yachidamo = Fraxinus mandshurica), N28E4, East Ward, Sapporo, on May 6 2015. [7] in Shiretoko Five Lakes Aera, eastern Hokkaido, on August 29 2020. [8] along Tonneusu Pond (トンネウス沼) in the North Ward of Sapporo on November 7 2020. [9] along a walkboard in a post-mined peatland, Sarobetsu mire, northern Hokkaido, on April 18 2024.