An herb; a plant. [
1913 Webster]
" This word is much used in compound names of plants in Spanish; as, yerba buena [Sp., a good herb], a name applied in Spain to several kinds of mint (Mentha sativa, viridis, etc.), but in California universally applied to a common, sweet-scented labiate plant (Micromeria Douglasii)."
[1913 Webster]