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(First upload on March 26 2009. Last March 6 2020) [ 日本語 | English ]

U. davidiana Planch. var. davidiana L. K. Fu Distribution: not distributed in Japan Synonym: U. davidiana var. mandshurica Svortsov var. japonica (Sarg. ex Rehder) Nakai Harunire (ハルニレ, 春楡), Japanese elm, or Wilson's elm Lifeform: deciduous tree < 30 m high Distribution: northeastern China - Korea - Japan, including Hokkaido Habitat: mesic sites (alluvial fan - mountain)

HUSTEP: Plants and Plant communities in Japan (flora list) Seed dispersal: wind Synonyms: U. propinqua Koidz. f. suberosa (Turcz.) Nakai コブニレ) f. kijimae (Makino) Sugimoto (ツクシニレ) f. laevis Miyabe (テリハニレ) ♠ Mary's elm (メリーさんのハルニレ) ♠ coupled holy-trees in Nakanoshima Shrine (中の島神社の夫婦御神木)

Ulmus davidiana in Hokkaido

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1 2 3
[1] at the central campus of Hokkaido University on February 16, 2009. This species is an indicator species showing wetland. [2/3] near the training hall of Japanese archery, Hokkaido University, on October 15 2018. Records: in Maeda Forest Park on May 30 2020.

Seeds and seedlings

4 5 6 7
[4] many seeds with a stem at Yachidamo Park (Yachidamo = Fraxinus mandshurica), N28E4, East Ward, Sapporo, on May 31 2011. [5] stemflow on a bark in the cortile of GSES on February 13 2020. [6] the cotyledons attached with the stem on May 20 2009. [7] insect galls of Tetraneura nigriabdominalis (オカボノクロアブラムシ) and its relatives, such as T. sorini, in front of Jaenne Restaurant on N21/W3, North Ward, Sapporo, on July 3 2018.