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Flora of Taiwan | Family List | Ixeris

Ixeris tamagawaensis (Makino) Kitam., Acta Phytotax. Geobot. 9: 115. 1940; Kitamura, Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol.. 23: 108. 1956; Li, Fl. Taiwan 4: 891. 1978.

澤苦菜

Ixeris tamagawaensis

Credit: HAST

  • Ixeris chinensis f. taitoensis (Hayata) Yamam.
  • Ixeris graminea (Fisch.) Nakai
  • Lactuca gracilis DC.
  • Lactuca taitoensis Hayata
  • Lactuca tamagawaensis Makino

    Perennial herbs with short tufted stolons; stems erect, scapiform, 10-30 cm long, naked or leaf 1. Radical leaves many, broadly linear, 8-15 × 0.3-0.5 cm, apex acute to acuminate, base narrowed, short, petiole-like, margins usually entire or sometimes slightly mucronulate. Heads few to many, pedicellate, 12-30 mm across, pale yellow, florets 25-30. Involucre 9-10 mm long, outer bracts somewhat unequal, inner bracts ca. 10. Achenes lanceolate, ca. 3 mm long; beak as long as body. Pappus white, ca. 5-6 mm long.

    HUALIEN: Mukuahsi, Peng 15421. TAITUNG: Tawu, Hsu 3414; Chihpen, Koyama et al. 6723.

    Korea and Japan. Taiwan, rocky river banks in the eastern part, not common.


     

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  • Image/JPEG (HAST)
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