Identification of mint

MENTHAE HAPLOCALYCIS HERBA

[Source] This product is the dry aerial part of Mentha haplocalyx Briq

[Character] The stem of this product is square column, with opposite branches, 15-40cm long, 0.

[Identification] The leaf surface view of this product: the head of the glandular scale has 8 cells, the diameter is about 90um, and the stalk is single cell; the head and stalk of the small glandular hair are both single cells

【Character identification characteristics】

(1) The stem is square-columnar with opposite branches, the surface is purple-brown or light green, and the edges and corners are hairy

(2) Opposite leaves with short stalk

(3) After the leaves are flattened, they are broadly lanceolate, oblong or ovoid, with concave punctate adenoid scales on the lower surface

(4) Cymbidium inflorescence, axillary, calyx campanulate, apex 5-lobed, corolla opposing lavender, with short stalk

(5) It has a special refreshing fragrance after rubbing

【Microscopic identification features】

(1) Leaf surface view: 8 cells in the head of adenosquamous cells and single cell in the stalk

(2) Non-glandular hair 1-8 cells, often curved, thick wall, with verrucous protrusions

(3) Stomata are more common in the epidermis, straight shaft type

(4) The parenchyma cells contain clusters of calcium oxalate