Ricinus L. (トウゴマ)

from China to Japan in early Heian Era
from USA to Japan in late Edo Era
nowadays naturalized, in particular, in the western part of Japan

Gibsonii: red-tinged leaves with reddish veins and pinkish-green seed pods
Carmencita Pink: pinkish-red stems, similar with Gibsonii
Carmencita Bright Red: red stems, dark purplish leaves and red seed pods
Impala: compact with reddish foliage and stems, brightest on the young shoots
Red Spire: tall with red stems and bronze foliage
Zanzibarensis: tall with large, mid-green leaves with white midribs