Slightly 3-lobed; lobes triangular or ovate-oblong, the middle one acute, the side lobes much shorter, obtuse,acute or almost wanting; margin of lvs. with minute,
remote teeth : male fls. minute, crowded into few-fld. racemes, which are usually shorter than the petiole: fr.ovate-reniform, obtuse, with a few short spines in the
back; seeds small, black, narrowly