Aerial parts of Lavandula angustifolia Mill., at flowering
stage, were collected from Botanical Garden of Niak
pharmaceutical factory (Gorgan) in September 2012.
Plant material was air-dried and stored at room
temperature without exposure to direct sunlight. The
sample was identified and the voucher specimens were
deposited at the Herbarium of botany faculty of Islamic
Azad University, Gorgan branch, Gorgan, Iran