376. EPILOBIUM.—WILLOW-HERB. The herb of Epilo'bium angustifo'lium Linné. Habitat: Northern Hemisphere. It has a smooth, reddish stem, branching above, arising from a long, yellowish-white root, and bearing the purplish-pink flowers in a raceme resembling those of the willow; hence the name willow-herb. Demulcent and astringent. Dose: 30 to 60 gr. (2 to 4 Gm.).