Studies on botanical characteristics and determination of Nomenclature of Aconitum in Sa Pa (Lao Cai province)

ABSTRACT

Studies on botanical characteristics and determination of Nomenclature of Aconitum in Sa Pa (Lao Cai province). 40 specimens of flowers and fruit stored in Specimen Museum, Institute of Medicinal Materials and Department of Botanical Medicine, Hanoi College of Pharmacy were collected from September to October 2003. This is a herbaceous perennial plant that has main root, simple leaf, and alternate sprout in the body, screw shape. The flowers grow in raceme, small peduncle, 2 small leaves, hermaphrodite and symmetrical flowers. Calyx has petal shape, blue purple color 2 inferior calyx leaves, narrow tapering shape; 2 side calyx leaves, nearly round; superior calyx leaf has curved shape. It has many stamens; anther is round to elliptic shape; carpel 5; short stamen sprout, durable. Aconitum specimen collected in Sa Pa belonged to Aconitum L. genus, and the Aconitum trees which were planted in Sa Pa has nomenclature is Aconitum carmichaelii Debx, or Aconitum carmichaelli Debx. var. carmichaelli, Ranunculaceae. In addition, results also confirm that the Aconitum specimen which was formerly collected in Sa Pa province, stored in Institute of Medicinal Materials also belonged to above species, it was not A.fortunei Hemsi species