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3. Glebionis segetum (Linnaeus) Fourreau, Ann. Soc. Linn. Lyon, sér. 2. 17: 90. 1869.
南茼蒿 nan tong hao
Chrysanthemum segetum Linnaeus, Sp. Pl. 2: 889. 1753; C. coronarium Linnaeus f. spatiosum (L. H. Bailey) Kitamura; C. coronarium var. spatiosum L. H. Bailey; C. spatiosum (L. H. Bailey) L. H. Bailey; C. umbrosum Willdenow; Matricaria segetum (Linnaeus) Schrenk; Pyrethrum segetum (Linnaeus) Moench; P. umbrosum (Willdenow) Boissier; Xantophtalmum segetum (Linnaeus) Schultz Bipontinus.
Herbs, annual, 20-60 cm tall, glabrous or nearly so; stems erect, fleshy. Basal and lower stem leaves sessile; leaf blade elliptic, obovate-lanceolate, or ovate-elliptic, margin irregularly largely dentate, rarely pinnatilobed. Upper stem leaves gradually smaller. Synflorescence ill-defined, not obviously flat-topped; capitula solitary or few at apices of branches; peduncle ca. 5 cm. Involucres cupular, 1-2 cm in diam.; phyllaries in 4 rows, inner ones scarious, apex enlarged. Ray achenes narrowly 2-winged. Disk achenes with 10 ribs.
Cultivated as a vegetable. Anhui, Beijing, Fujian, Guangdong, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Yunnan, Zhejiang [native to the Mediterranean region].
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