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(First upload on January 18 2012. Last on November 2 2018) [ 日本語 | English ]

Lactuca indica L.






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

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)
索引

Lactuca indica in Hokkaido


ST1 ST2
ST3 ST4
[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

ST1 ST2 ST3
ST4 ST5 ST6
[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


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)

ST 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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