野菊 ye ju

Chrysanthemum indicum var. coreanum H. Léveillé; C. indicum var. edule Kitamura; C. indicum var. hibernum Makino; C. indicum var. litorale Y. Ling; C. indicum var. lushanense (Kitamura) Handel-Mazzetti; C. lushanense Kitamura; C. nankingense Handel-Mazzetti; C. procumbens Loureiro; C. sabinii Lindley; Dendranthema indicum (Linnaeus) Des Moulins; D. indicum var. huludaoense G. Y. Zhang, L. J. Yu & Y. J. Liu; D. nankingense (Handel-Mazzetti) X. D. Cui; Matricaria indica (Linnaeus) Desrousseaux; Pyrethrum indicum (Linnaeus) Cassini (1826), not Sims (1813); Tanacetum indicum (Linnaeus) Schultz Bipontinus.

Herbs, perennial, 0.25-1 m tall, with long or short procumbent rhizomes. Stems erect or diffuse, branched, sparsely pilose. Lower leaves withered at anthesis. Middle stem leaves: petiole 1-2 cm; leaf blade ovate, long ovate, or elliptic-ovate, 3-7(-10) × 2-4(-7) cm, both surfaces pale green or olive, sparsely pubescent or less densely so abaxially, pinnatifid, pinnatilobed, or inconspicuously divided, base truncate, somewhat cordate or broadly cuneate. Synflorescence a lax terminal flat-topped cyme. Capitula many or few. Phyllaries in 5 rows, scarious margin broad, white or brown, apex obtuse or rounded, outer ones ovate or ovate-triangular, 2.5-3 mm, middle ones ovate, 6-8 mm, inner ones narrowly elliptic, ca. 1.1 cm. Ray floret lamina yellow, 1-1.3 cm, apex entire or 3-denticulate. Achenes 1.5-1.8 mm. Fl. and fr. Jun-Nov. 2n = 18, 35-38, 36*, 40, 54.

Grasslands on mountain slopes, thickets, wet places by rivers, fields, roadsides, saline places by seashores, under shrubs; 100-2900 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Sichuan, Taiwan, Yunnan [Bhutan, India, Japan, Korea, Nepal, Russia, Uzbekistan].

Chrysanthemum indicum is one of the main parents of the florists’ chrysanthemum, "C. grandiflorum" (see note under genus). The natural distribution within China is not clear because of confusion with cultivated plants in the "C. grandiflorum" complex.