Arum
a genus of plants belonging to the order araceæ, or arads. It contains the well known A. maculatum, the cuckoo-print (meaning point), lords and ladies, or wake robin. The solitary spikes of bright scarlet berries may often be seen under hedges in winter, after the leaves and spadix have disappeared.
They are poisonous. The rhizomes are used in Switzerland for soap. There is in them an amylaceous substance, which after the acrid matter has been pressed out, may be employed in lieu of bread flour.