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2b. Emilia sonchifolia var. javanica (N. L. Burman) Mattfeld, Bot. Jahrb. Syst. 62: 445. 1929.
紫背草 zi bei cao
Hieracium javanicum N. L. Burman, Fl. Indica, 174. 1768; Emilia flammea Cassini; E. javanica (N. L. Burman) C. B. Robinson; E. sagittata Candolle; E. taiwanensis S. S. Ying.
Involucres 6-12 × 2-4 mm. Corollas exceeding involucre by (2.5-)3-4 mm; corolla lobes 1.2-2.2 mm. 2n = 20.
Weedy places, roadsides, field margins, sandy places; sea level to 900 m. Anhui, Fujian, Guangdong, Hainan, Hunan, Taiwan, Zhejiang [Japan; islands of S Pacific from Indonesia to E Polynesia].
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