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Key to Pinellia

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Show caption*© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell 1 Leaves pedately compound,, with 5-11 leaflets; spathe 10-19 cm long; spadix 14-20 cm long  Pinellia pedatisecta

Show caption*© Keita Watanabe, some rights reserved (CC BY-NC), uploaded by Keita Watanabe 1 Leaves palmately compound, with 3 (-5) leaflets (juvenile plant leaves can be deeply 3-lobed or simple); spathe 6-9 (-10) cm long; spadix either 9-10 cm long or 20-25 cm long.

Show caption*© Erin Lalime, some rights reserved (CC BY), uploaded by Erin Lalime   2 Bulblets present in sheath, at lower or middle portions of petiole, and/or at summit of petiole (junction with leaf blade); spadix 9-10 cm long; female zone of flowers ca. 2 cm long, sterile gap ca. 3 mm long, and male zone 5-7 mm long  Pinellia ternata

2 Bulblets absent; spadix 20-25 cm long; female zone of flowers ca. 3 cm long, sterile gap ca. 6-7 mm long, and male zone 18-20 mm long  Pinellia tripartita