184 Juncus capitatus Weig.

This species occurs in most of Europe (except N) and adjacent parts of Africa and Asia. It is probably not native in America. It has nowadays an amphiatlantic distribution (Hultén, Amphi-atl., p. 158 and map 140). Cf. world maps by H. Weimarck in Sv. Bot. Tidskr. 40/1946, p. 162, and Meusel et al. 1965, p. 83.