Arisaema odoratum J.Murata & S.K.Wu

Plants monoecious or male. Tuber subglobose. Cataphylls 2 or 3, membranous. Leaves 1 or 2; petiole green to purplish, unmarked, 13–22cm, basal 4–7cm sheathing into pseudostem; leaf blade 3-foliolate; leaflets sessile, ovate to oblong, base cuneate, margin entire, apex acuminate. Inflorescence fragrant; peduncle green, nearly as long as petiole. Spathe white, 7–8cm; tube funnelform, gradually opening to blade; limb ovate or oblong to narrowly oblong, 5.5–6 × 1.7–4cm, apex acute to acuminate, bending forward. Spadix male or bisexual; female flowers green or cream-colored, congested in basal part of spadix; male flowers white. Appendix extremely fragrant, sessile, dull green, becoming orange, whip-shaped, 5–9cm, bent down from throat of spathe. 2n = 22*.