Foliorum petiolus longitudine variabilis,
in sicco 0,7-2 mm crassus,
(3-)6-12(-18) cm longus,
glaber;
lamina inter nervos supra atro-virens
et subtus rubra,
glaberrima,
inaequilateralis,
ambitu late ovate usque late ovalis,
excentrice peltata,
umbilico a margine proximo 1,3-3 cm remoto instructa,
4-9 cm longa,
medio 4-9 cm lata,
margine integra,
raro grosse ac leviter sinuato-denticulata,
apice subito breviter angusto-acuminata
(usque 1 cm),
basi in lobum 1,5-4 cm longum producta,
nervis 7-12 ab umbilico radiatim abeuntibus plerumqne iterum semel furcatis instructa.