a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests

annual, biennial or perennial herbs: buttercup; crowfoot

perennial European buttercup with yellow spring flowers widely naturalized especially in eastern North America

perennial Old World buttercup with golden to sulphur yellow flowers in late spring to early summer; naturalized in North America

showy white-flowered perennial of New Zealand

perennial of western North America

perennial European herb with long creeping stolons

annual, biennial or perennial herbs: buttercup; crowfoot