This ninth volume describes 285 species of medicinal plants of 30 families, which are commonly used in Chinese medicine. The most important species are Alisma orientale of Alismaceae Commelina communis of Commelinaceae Eriocaulon buergerianum of Eriocaulaceae Alpinia galanga, Alpinia hainanensis, Alpinia officinarum, Alpinia oxyphylla, Amomum compactum, Amomum kravanh, Amomum villosum, Amomum villosum var. xanthioides, Amomum longiligulare, Amomum tsao-ko, Costus speciosus, Curcuma aromatica, Curcuma kwangsiensis, Kaempferia galanga, Zingiber officinale of Zingiberaceae Anemarrhena asphodeloides, Asparagus cochinchinensis, Disporum cantoniense, Fritillaria cirrhosa, Fritillaria delavayi, Fritillaria unibracteata, Lilium brownii, Lilium brownii, Liriope muscari, Ophiopogon japonicus, Polygonatum kingianum, Polygonatum sibiricum, Polygonatum odoratum of Liliaceae Paris polyphylla of Trilliaceae Smilax glabra and Smilax riparia of Smilacaceae65307Acorus calamus, Acorus tatarinowii, Aglaon