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(First upload on January 18 2012. Last on August 25 2021) [ 日本語 | English ]

Lactuca L. (アキノノゲシ) Akinonogeshi (アキノノゲシ, 秋ノ野芥子), Indian lettuce Life form: perennial forb Distribution: common in the cool and temperate regions of the Northern Hemisphere Habitat: common in grasslands and forest edges Field training on integrated environmental research (統合環境調査法実習) (fauna and flora 種リスト) HUSTEP: Plants and Plant communities in Japan (flora list) Seed dispersal: wind

Chromosome number: 2n = 18 Synonyms: Pterocypsera laciniata (Houtt.) C. Shih Lactuca indica L. var. laciniata (Houtt.) H. Hara Lactuca indica L. var. laciniata (Houtt.) H. Hara f. indivisa (Maxim.) H. Hara Pterocypsera indica (L.) C. Shih var. dracoglossa (Makino) Kitam. (リュウゼツサイ, cultivars) f. indivisa (Makino) Kitam. (ホソバアキノノゲシ, not valid)

Lactuca indica in Hokkaido

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[1-3] on a lawn in Hibiya Park, Tokyo, on December 26 2015. [4] in Suwa Shrine, northwestern Kyushu, on April 16 2017.

f. indivisa

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[1-3] inflorescences with a fly. At Zenibako Coast (銭函海岸), Otaru City, on August 31 2011. [4] at Denshinhama Coast, Muroran City, on September 8 2014. [5/6] at Denshinhama Coast, Muroran City, on September 3 2018.

Lactuca sativa L. for vegetable

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Chisya (チシャ/レタス, 萵苣), lettuce Lifeform: annual/biennial forb ⇒ seed Origin: Mediterranean - West Asia Synonyms: Lactuca scariola var. sativa (Moris) Lactuca scariola var. integrata (Gren. et Godr.) Lactuca scariola var. integrifolia (G. Beck)

var. capitata L. (タマチシャ/ヘッドレタス, レタス, チシャ, s.s.) var. crispa L. Two strains: (ハチシャ, 葉萵苣/チリメンヂシャ/リーフレタス) (カキヂシャ/カッティングレタス) var. longifolia Lam. (タチヂシャ, 立萵苣/立レタス) var. angustana L. H. Bailey (クキチシャ, 茎萵苣/ステムレタス)

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[1-3] along a seacoast on the bottom of cliff near the Muroran Marine Experimental Station of Hokkaido University on September 9 2019. [4-6] under a street tree in N17/W1, North Ward, Sapporo, along Sosei River on July 7 2021. Records: within a house garden in N25/W3, North Ward, Sapporo, on August 30 2022.