Ixeris tamagawaensis

澤苦菜

Ixeris tamagawaensis (Makino) Kitam.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

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Kitam., Acta phytotaxonomica et geobotanica eng 9: 115. 1940. (Acta Phytotax. Geobot., 植物分類,地理)

同發表文獻

Lactuca gracilis auct. non DC.

Hayata, Icones Plantarum Formosanarum 6: 40. 1917. (Icon. Pl. Formos., 台灣植物圖譜)
Lactuca taitoensis Hayata

Hayata, Icones Plantarum Formosanarum 8: 76. fig. 31–2. 1919. (Icon. Pl. Formos., 台灣植物圖譜)
Ixeris graminea auct. non Fisch.

Nakai, The Botanical magazine, Tokyo 36: 23. 1922. pro parte. (Bot. Mag. Tokyo, 植物學雜誌)
Ixeris chinensis Makino f. taitoensis (Hayata) Yamamoto

Yamamoto, Journal of the Society of Tropical Agriculture 8: 352. 1936. (J. Soc. Trop. Agr., 熱帶農學會誌)

herb

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.