Table 203.1. Cultivated Araceae that Occasionally Naturalize or Persist from Cultivation.

Taxon	Will Key To	Distinguishing Characteristics	Comments
Aglaonema commutatum Schott	Peltandra	Leaves oblanceolate to oblong with thick midveins and parallel venation; creeping or erect aboveground stem; spathe not differentiated into tube and blade	Dade Co., Florida; persisting after cultivation, rarely found
Alocasia macrorrhizos (Linnaeus) Schott	Peltandra	Leaves net-veined between primary lateral veins; aboveground stem; spadix with sterile appendage	Dade Co., Florida; persisting for short periods, rarely found
Arum italicum Linnaeus	Peltandra	Leaves net-veined between primary lateral veins; long sterile appendage	California, Louisiana, North Carolina, Oregon; escaping locally and forming colonies
Caladium bicolor (Aiton) Ventenat	Colocasia	Leaves usually variegated with pink, red, or white; spadix without sterile appendage	Florida, Louisiana; rarely found
Dracunculus vulgaris Schott	Arisaema dracontium	Spadix about as long as spathe; spathe with large distinct blade	California, Oregon; rarely found
Epipremnum pinnatum (Linnaeus) Engler cv. 'Aureum'	will not key well to any genus	Stem scandent; juvenile leaves entire, adult leaves irregularly pinnatifid, leaves variegated with yellow; rarely flowering	Florida; escaping and persisting in shady hammocks and on roadside trees
Pinellia ternata (Thunberg) Makino	Arisaema triphyllum	Petiole with bulbils basally and at apex; base of spadix adnate to spathe on one side	California, District of Columbia, Maryland, New Jersey, New York, Ohio, Pennsylvania, West Virginia; very local, forming colonies usually in gardens and nurseries
Syngonium podophyllum Schott	Arisaema	Stems scandent; milky sap; juvenile leaves entire, adult leaves pedatisect	Florida; established on roadside trees and hammocks, local; other species of Syngonium may persist, but are rarely found
Xanthosoma spp.	Peltandra	Leaves not peltate, net-veined between primary lateral veins; may have aboveground stem; spadix without sterile appendage	S Florida, Louisiana, and Texas; persisting from cultivation, rarely spreading
Zantedeschia aethiopica (Linnaeus) Sprengel	Peltandra	Spathe funnel-shaped, not constricted, white	California; uncommon