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(First upload on December 23 2008. Last on June 5 2013) [ 日本語 | English ]

Ixeris Cass. (ニガナ) Oojishibari (オオジシバリ, 大地縛), weak ixeris Lifeform: perennial forb Distribution: China - Korea - Japan (southwest Hokkaido and the southern parts) Habitat: cultivated land, etc. → Nature on lakes, volcanoes, sea and forests (海と湖と火山と森林の自然) HUSTEP: Plants and Plant communities in Japan (flora list)

Seed dispersal: wind Chromosome number: 2n = 48 Synonyms Ixeris japonica (Burm. f.) Nakai ⇒ Ixeris stolonifera A. Gray (ジシバリ) Comparing with I. debilis: Leaf = small, petiole = long, flower = small f. sinuata (Franch. et Sav.) Kitam. (キクバジシバリ) → I. japonica (Burm. f.) Nakai f. dissecta Nakai

Ixeris debilis in Japan

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[1] at elsewhere in Japan in May 1985. [2-4] at West Ariake Pier Park, Tokyo, on May 12 2013.