Top
Header

(First upload on October 1 2012. Last on November 24 2017) [ 日本語 | English ]

Non-Japanese alders
Alnus crispa (Aiton) Pursh, A. glutinosa




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

Alnus Mill. (ハンノキ), non-native to Japan

A. crispa, A. glutinosa, A. mandshurica

Alnus crispa (Aiton) Pursh in Alaska


distribution
Distribution of Alnus crispa
Kyokuhokumiyamahannoki (キョクホクミヤマハンノキ, 極北深山榛ノ木), (American) green alder
Life form: deciduous shrub with 3-8 m tall
Distribution: Siberia - boreal North America

Synonyms:
Alnus viridis (Chaix.) D. C., often used
Betula crispa Ait.

Habitat: sunny, moist soil → wetland (湿原), in particular, on bog
Varieties (Hultén 1968)
ssp. crispa

f. strangula Fern.

ssp. sinuata (Ait.) Pursh

var. laciniata Hult.


Cf. A. incana (L.) Moench ssp. tenuifolia (Nutt.) Breitung
mountain alder or thinleaf alder
Distribution western North America (New Mexico to Alaska) Synonyms:

A. tenuifolia Nutt.

索引

Alnus1 Alnus2
[1/2] at Poker Flat near Fairbanks, AK, on August 13 2012.

Alnus glutinosa (L.) Gaertn.


Seiyouyamahannoki (セイヨウヤマハンノキ), black alder
Guruchino-sahannoki (グルチノーサハンノキ) / Yo-rropayamahannoki (ヨーロッパハンノキ)
Lifeform: deciduous tree
Distribution: Europe and southwest Asia (not in Japan)
Habitat: moist soil
Nitrogen-fixing: by a bacterium, Frankia alni

Alnus1 Alnus2 Alnus3
[1-3] a transplanted tree at the arboretum of Hokkaido Research Center, Forestry and Forest Products Research Institute, in Hitsujigaoka, Sapporo, on July 9 2013. [3] a bark (樹皮).

Alnus mandshurica (Callier ex C. K. Schneider) Handel-Mazzetti


Manshu-hannoki (マンシュウハンノキ, 満州榛ノ木), Manchurian alder
Lifeform: shrub or short tree ≈ 10 m tall
Distribution: northeast China - Far East - northern Korea
Habitat: streamsides, disturbed forests
Synonyms:

Alnus fruticosa Ruprecht var. mandshurica Callier ex C. K. Schneider

Alnus1 Alnus2 Alnus3
[1-3] on Changbai Mountain, Jilin Province, China, on June 12 2017.

フッター