Northeastern Asian Flora
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Lactuca sibirica (L.) Benth. ex Maxim.  
Family: Asteraceae
[Lagedium sibiricum (L.) Soj?, moreMulgedium kamtschaticum Ledeb., Mulgedium sibiricum (L.) Less., Sonchus sibiricus L.]
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  • Japan Flora
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Japan Flora: Glabrous perennial herb; stems erect, usually simple, 60-100 cm. long; leaves lanceolate, 7-12 cm. long, 1-2.5 cm. wide, acuminate, mucronate-toothed, sometimes incised, slightly glaucous beneath, sessile; inflorescence a corymb; heads few to rather many, 3-3.5 cm. across, blue-purple; involucres 12-15 mm. long, the inner bracts about 15, the outer ones unequal; achenes lanceolate, scarcely beaked, ribbed, smooth; pappus white, about 1 cm. long. July-Aug.

Hokkaido. Ku­riles, Sakhalin, n. Korea, Siberia, and Europe.

Lactuca sibirica
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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