Northeastern Asian Flora
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Arisaema heterophyllum Blume   (redirected from: Arisaema peninsulae var. manshuricum (Nakai) T.C.Chu & T.K.Zheng)
Family: Araceae
[Arisaema ambiguum Engl., moreArisaema brachyspathum Hayata, Arisaema heterophyllum var. nigropunctatum Makino, Arisaema koreanum Engl., Arisaema koreanum var. tacquetii Engl., Arisaema koreanum var. taquetii Engl., Arisaema kwangtungense Merr., Arisaema limprichtii K.Krause, Arisaema manshuricum Nakai, Arisaema multisectum Engl., Arisaema peninsulae var. manshuricum (Nakai) T.C.Chu & T.K.Zheng, Arisaema stenophyllum Hand.-Mazz., Arisaema stenospathum Hand.-Mazz., Arisaema takeoi Hayata, Arisaema thunbergii subsp. geomundoense S.C.Ko, Arisaema thunbergii subsp. urashima (H.Hara) H.Ohashi & J.Murata, Arisaema thunbergii var. heterophyllum (Blume) Engl., Arisaema thunbergii var. monostachyum Nakai, Arisaema thunbergii var. urashima (H.Hara) Makino, Arisaema urashima H.Hara, Arisaema urashima var. gigantum Konta, Arisaema urashima var. kashimense Hayashi, Arisaema urashima var. monostachyum (Nakai) H.Hara, Asteroarisaema heterophyllum (Blume) Nakai, Flagellarisaema urashima (H.Hara) Nakai, Heteroarisaema heterophyllum (Blume) Nakai, Heteroarisaema koreanum (Engl.) Nakai, Heteroarisaema manshuricum Nakai]
Arisaema heterophyllum image
  • Japan Flora
  • Japan Flora
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Japan Flora: Mon­oecious; tuber hemispherical, 2-4 cm. across; scalelike leaves 4 or 5, tunicate; normal leaf solitary, on a long erect stemlike sheath to 1 m. tall and 1-2 cm. thick, the petiole erect-spread­ing, 6-14 cm. long; leaflets 13-19, oblanceolate or oblong, sub- abruptly contracted at apex, undulate on margin, the terminal leaflet much shorter than the others, the first lateral ones 10-25 cm. long, 2-6.5 cm. wide; spathe on a long erect scape, green, the tube 3.5-8 cm. long, dark purplish on margin, the blade ovate, 7-12 cm. long, 3-7 cm. wide, usually green, bent for­ward and arching over the spadix, abruptly short-acuminate; appendage of spadix filiform, erect, 15-30 cm. long, slighdy thickened at base and passing into the floriferous part. May-July. Wet places in lowlands.

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu; rather rare. s. Korea, For­mosa, and China.

Japan Flora: tuber depressed-glo­bose, bearing several to rather many small lateral tubers; leaf solitary (very rarely 2), the petiole terete, nearly erect, 30-50 cm. long, the leaflets 11-15, oblanceolate to broadly lanceolate, acuminate, the terminal one 10-18 cm. long, 2-3.5 cm. wide; peduncle 10-20 cm. long, arising 7-15 cm. above base of petiole; spathe dark to bronze-purple, sometimes reddish purple, the blade ovate to broadly so, abruptly long taillike at tip, strongly arching over the spadix; spadix-appendage filiform, 40-60 cm. long, long-exserted, the upper half bent abruptly downward and pendulous, gradually thickened below forming a smooth oblong enlargement then gradually passing into the floriferous part. Apr.-May.

Hokkaido (Oshima and Hidaka Prov.), Honshu, Shikoku.

Arisaema heterophyllum
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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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