Traits
1. Sex Identification Leaves broadly ovoid, ca. 4-12 cm, 2.5-8 cm wide, base broadly cuneate or suborbicular, asymmetric, apex acuminate, margin slightly recurved, 2-8 spikes on each side Serrated, green on the surface, shiny, light under the surface, yellow-green; thick leathery. Petiole short or absent. Weakness and bitterness.
Microscopic identification of leaf cross-section: the upper epidermal cells in a row, some containing red-brown material, the outer layer of stratum corneum, up to 8um thick, 1 epidermis cell, there are more pores. There are 1-2 rows of fibers on the inside of the upper and lower epidermis, polygonal, and the wall is slightly woody. Palisade tissue cells 1-3 through the main vein. Sponge tissue cells contain calcium oxalate crystals. The main vascular bundle 3, external tough type, there are many outside the fiber ring, the lower fiber is often connected with the fiber dimension of the inner side of the lower epidermis.
chemical composition
Broadleaf Mahonia leaves contain berberine. The leaves belonging to the genus Plantiae include the jatrorrizine, berberine, palmatine and magnoflorine.
South China's top 100 leaves contain isotetrandrine, berberine, palm leaf anti-alkali, jatrorrhizine and magnoflorine.
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