greens (n.)
"freshly cut branches used for decoration," 1690s; "vegetables," 1725, from green. Greens "ecology political party," first recorded 1978, from German die Grünen (West Germany), an outgrowth of Grüne Aktion Zukunft "Green Campaign for the Future," a mainly anti-nuclear power movement, and/or grüne Listen "green lists" (of environmental candidates). Green (adj.) in the sense of "environmental" is attested from 1972; Greenpeace, the international conservation and environmental protection group, is from 1971.