from The Century Dictionary.
- noun A plant, Ruellia tuberosa, found in Texas, Mexico, California, the West Indies, and elsewhere. Its flowers are large and blue, and its tuberous roots have emetic properties.
Sorry, no etymologies found.
The pods of cow-itch (_Mucuna pruriens_) act as a vermifuge; the roots of the _Ruellia tuberosa_, or manyroot, and the bulbs of the white lily (_Pancratium Carribæum_ and _maritimum_), are emetic.
The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c.