Polygonatum King Solomon's-seal or Solomon's Seal, is a genus of about 50 species of flowering plants. Polygonatum kingianum, Rhizome subterete or submoniliform, 1--3 cm thick. Stem erect, 1--3 m, glabrous, apex subscandent. Leaves in whorls of 3--10, sessile, linear to lanceolate, 6--20(--25) × 0.3--3 cm, herbaceous or leathery, apex cirrose. Inflorescences (1 or)2--4(--6)-flowered; peduncle 1--2 cm, pendulous; bracts borne usually on proximal part of pedicel, small, membranous.
Further studies on the fresh rhizomes of Polygonatum kingianum led to the isolation of one new spirostanol saponin (25R)-kingianoside G (1), and two pairs mixture of 25R and 25S stereoisomeric spirostanol saponins (25R, S)-pratioside D1 (2a, 2b) and (25R, S)-kingianoside A (3a, 3b), among them 2b and 3b were new spirostanol saponins, together with another two known compounds, disporopsin (4) and daucosterol (5).