Objective:To systematically study on the pharmacognosy characteristics of Wahlenbergiae Marginatae Radix seu Herba

in order to provide references for its identification

quality standards and further development and utilization. Method:Under Digital-Camera 6.0 software environment combined with digital microscope and electronic eyepiece

microscopic character observation was used to observe surface characteristics of the whole plant.Tissue sections were prepared by frozen section method

then microscopic observations

photographs

measurements

and related data were recorded.The superposition of depth of focus was treated by Adobe Bridge CS6 and Photoshop CS6 softwares. Result:Roots of Wahlenbergiae Marginatae Radix seu Herba had lots of laticifer groups and irregular-crystal inulins in cortex and phloem;its stems had many infinitive stomata in flat axis

collenchymas

single-cell non-glandular hairs

endodermis

single distributed laticifers and fiber bundles.The main identificational points in its leaves were squarish epidermal cells with cuticle

infinitive stomata

single-cell non-glandular hairs

collateral vascular bundle and obvious endothelium ring.And also there were lots of other points in the crude herb

such as protuberances in the petals margins

pollen morphology

the size of fruits and seeds

wrinkles and longitudinal stripes in the surface of seeds.Hence

the microscope characteristics of the powder of Wahlenbergiae Marginatae Radix seu Herba contained lots of multi-hole fibers

infinitive stomata in flat axis

single-cell type non-glandular hairs

inulins in irregular crystals;and also there were leaf epidermal cells of shallow waves

oblong seeds of longitudinal stripes

scattered colorless transparent oil drops

round pollen grains of three germinating holes in the medicinal powder;the above aspects could be used as the main identificational points of its powder. Conclusion:The main identificational points of Wahlenbergiae Marginatae Radix seu Herba include the characteristics of the transverse section of its roots

stems and leaves

and the surface characteristics of its flowers

fruits and seeds.