Herbs that Cool the Blood

What is the taste and temperature of Xuan Shen (scrophulariae radix)?

Xuan Shen softens hardness and masses (like scrofula), so it is salty in flavor.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 124 [Q384]