Northeastern Asian Flora - Arisaema heterocephalum

Arisaema heterocephalum Koidz. (redirected from: Arisaema heterocephalum var. majus Seriz.)
Family: Araceae [Arisaema heterocephalum subsp. majus (Seriz.) J.Murata, more] Images not available	Japan Flora Resources Japan Flora: Pseudostem 30-70 cm. long, from a hemispherical tuber; leaves 2, the petiole 7-20 cm. long； leaflets 11-19, pedate, linear or linear-oblanceolate, die terminal one 8-17 cm. long, 15-20 mm. wide; spathes dimorphic, the pistillate with a green tube about 8 cm. long, ampliate in upper part, the blade broadly ovate, 7 cm. long, short-acuminate, the spadix-appendage 6.5 cm. long, narrowly clavate- cylindric, an erect stipe about 6 cm. long; staminate spathe tubular, 7 cm. long, 5 mm. across, the spadix-appendage capitate at apex, on a stipe 7 cm, long. Reported to occur in Kyushu (Yakushima) Ryukyus, from Amami-Oshima to Okinawa.
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