Brief introduction of rue wood

Rue: a tree, mainly produced in Malaysia, with a maturity of more than 80 years. Heartwood is brown, slightly different from sapwood, sapwood is yellow-brown; Growth rings are not obvious; Common rue is a small garden shrub with evergreen leaves and clusters of dark yellow flowers. The leaves are densely covered with glandular spots, translucent, and used as spices and medicines. Expelling wind, relieving spasm, regulating menstruation and killing insects. Clearing away heat and toxic materials, removing blood stasis and relieving pain. Used for colds, fever, toothache, irregular menstruation and eczema in children; Topical treatment of sores, furuncles, swelling and traumatic injuries. It not only has a special fragrance, but also is a precious medicinal material. Most libraries at or above the provincial level still use Cao Yun to protect precious books and records and paper collections.