yerba mansa: stoloniferous herb of southwestern United States and Mexico having a pungent rootstock and small spicate flowers with white bracts suggesting an anemone
herb: a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
thrips: any of various small to minute sucking insects with narrow feathery wings if any; they feed on plant sap and many are destructive