palma Christi noun phr. [,palmǝ 'krɪsti] Also (arch.) Anglicized as palmchrist ['pɑ:mkrʌɪst]. LME.
[medieval Latin = palm or hand of Christ.]
The castor oil plant, Ricinus communis, which has palmately divided leaves. Formerly, a medicinal herb with similar leaves, perhaps motherwort, Leonurus cardiaca.

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