Perennial, green or purple, more or less arachnose pubescent. Root fibrous, thickened,2-3mm across. stems dimorphic: vegetative shoot a rosette; flowering shoots 1-several, erect or ascending; longer stems somewhat decumbent basally, unbranched or sparsely branched. Rosette leaves lorate,8~15 by 1-2cm, apex acute, subglabrous to arachnoid pubescent on both surfaces; cauline leaves shorter, 3-7 by 0.7-1cm. Sheath cylindrical, 0.5~1.5cm long, densely arachnose. Cyanotis arachnoides C. B. Clarke is a herbal medicine which has many effects such as "recovering, weakness, getting rid of humidity, stimulating blood circulation and relaxing the muscles and joints etc. Cyanotis arachnoides is found to be with highest content of Beta-Ecdysterone, in the plant kingdom. Ecdysterone can promote the amino acid to produce protein. It can stimulate the grow of muscle. It can also improve the liver function in order to accommodate the stress due to the change of environment.