Northeastern Asian Flora
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Arisaema ringens (Thunb.) Schott   (redirected from: Arisaema arisanensis Hayata)
Family: Araceae
[Alocasia ringens (Thunb.) Raf., moreArisaema arisanense Hayata, Arisaema arisanensis Hayata, Arisaema glaucescens (Nakai) Nakai, Arisaema glaucescens var. viridiflorum Nakai, Arisaema praecax deVriese, Arisaema praecox de Vriese ex K.Koch, Arisaema ringens var. glaucescens Nakai, Arisaema ringens var. praecox (de Vriese ex K.Koch) Engl., Arisaema ringens var. sieboldii (de Vriese ex K.Koch) Engl., Arisaema ringens var. viridiflorum Nakai, Arisaema serotinum Miq. ex Franch. & Sav., Arisaema sieboldii de Vriese ex K.Koch, Arisaema sierotium Siebold ex Regel, Arisaema taihokense Hosok., Arum ringens Thunb., Ringentiarum glaucescens (Nakai) Nakai, Ringentiarum ringens (Thunb.) Nakai, Ringentiarum ringens var. sieboldii (de Vriese & K.Koch) Nakai]
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  • Japan Flora
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Japan Flora: Tuber depressed-globose, bearing a few small lateral tubers; leaves 2, the petiole terete, erect, 15-25 cm. long; leaflets 3, rather thick, ternate, sessile, broadly rhomboidal-ovate, 8-20 cm. long, 4-10 cm. wide, entire, prominently lustrous above, subabruptly narrowed into a filiform tail 5-15 mm. long; peduncle short, 3-10 cm. long; spathe greenish (forma praecox T. Koyama) or uniformly dark purple (forma sieboldii T. Koyama), with a large auricle on each side on the margin of the tubular part, the blade saccate-galeate, the lower half obliquely ascending, the upper half strongly bent forward, 35-4.5 cm. long, short-caudate; spadix-appendage cylindric, the base thickened and abruptly contracted above the florifer­ous part. Mar.-May. Woods near seacoast.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu. Ryukyus, China, and s. Korea.

Arisaema ringens
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Development supported by College of Agriculture and Life Sciences of Seoul
National University and Korea National Arboretum of Korea Forest Service.
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