Bidens.

Botanical name: 

Bidens. Bidens bipinnata, L. Spanish Needles.—An indigenous composite plant, of which the root and seeds are popularly used as emmenagogues, and by the eclectics in laryngeal and bronchial diseases.


The Dispensatory of the United States of America, 1918, was edited by Joseph P. Remington, Horatio C. Wood and others.