Contractions. - Rhod. Rho.
Rhododendron chrysanthum. Nat. ord., Ericaceae.
Synonym. - R. officinale.
Fig. - Woody. Med. Bot., t. 149.
Habitat. - The highest mountains of Siberia and the Caucasus, also in Kamtschatka.
Parts employed. - Dried leaves and flower-buds.
Characters. - The leaves are 2 to 3 inches long, short petio-late, obovate, above smooth, yellowish-green or else nut-brown. At the margin a little revolute, and leather-like along with the red-brown woolly flower-buds. They smell slightly like rhubarb, and have an astringent taste. They may be mistaken for the leaves of Rhododendron ferrugineum, but these are easily distinguished by the dark, rust-coloured cover of the under-side.
Time for collecting. - When the flower-buds are well developed but not opened.
Preparation. - Tincture, using proof spirit.
Reference to Horn. Proving. - Stapf's Beitr.
Proper forms for dispensing. - φ and lx, Tincture only. 1 and upwards, Tincture, Pilules, or Globules.