Rhodiola crenulata Root and Rhizome Powder

DEFINITION

The article consists of the dried roots and rhizomes of Rhodiola crenulata (Hook.f. & Thomson) H. Ohba, currently accepted name Sedum crenulatum Hook.f. & Thomson (Family Crassulaceae), collected after the scape wither in autumn, reduced to a fine or very fine powder. It contains NLT 1.0% of total phenylethanoids, calculated as the sum of salidroside (C₁₄H₂₀O₇) and tyrosol (C₈H₁₀O₂) on the dried basis; and NLT 0.6% of salidroside on the dried basis.

POTENTIAL CONFOUNDING MATERIALS

Rhodiola calliantha (H. Ohba) H. Ohba

Rhodiola cretinii (Hamet) H. Ohba

Rhodiola dumulosa (Franch.) S. H. Fu