gerardia[jə rär′dē ə]
any of a genus (Gerardia) of American plants of the figwort family, with showy yellow, white, or pinkish flowers: it is sometimes parasitic on roots
Origin of gerardiaModern Latin after J. Gerard (1545-1612), Eng botanist
Any of various herbaceous, root-parasitizing plants of the genus Agalinis, native to temperate regions of the Western Hemisphere, having large pink, purple, or white flowers with yellow markings in some species.
Origin of gerardiaNew Latin Gerardia, former genus name, after John Gerard, (1545–1612), English botanist.