The needle leaf of Pinus massoniana Lamb., family Pinaceae.
The needle leaf paired in a sheaf, slender-linear, 12-20 cm long, yellow-green.
Two leaves jointed or separated at base. Soff in texture. Bitter in taste
and warm in nature.
1. Tranquilize the mind: For palpitation, insomnia, amnesia. Recently
used for neurasthenia, chronic Keshan disease, hypertension, coronary
heart diseases and cor pulmonale;
2. External use for depriving dampness, killing parasite and alleviate
itching: For exudative dermatitis, scabies and tinea.
Its decoction inhibits the growth of meningococcus in vitro.
External use: Appropriate amount.