Europe and north america grey-wilson
Anatomical characterization of impatiens walleriana assignment
Its vascular bundles can be found between the pith and the ortex, also, an endodermis exists between the cortex and phloem. On the other hand, crystals can be found in Impatiens, these are excess inorganic substances often consisting of calcium salts such as calcium oxalate which are often deposited in the vacuole of the cell in a crystalline form. The type of crystals found in Impatiens is raphides. Raphides are are needle-like crystals that occur in bundles, particularly in the phloem region.
According to some researches, the anatomical structure of the species analyzed should ave showed that all vessels have perforations and intervessel pits which are mainly scalariform, however, the researchers had only used free-hand sectioning, thus, were not able to have a constructive observation of the perforations. Anatomically, it can be seen mechanisms that can assist in the establishment and survival of the species in relation to different conditions in the environment, as the presence of the cuticle, the cell wall of epidermal cells, large parenchyma cells in the cortex and pith, and the vascular bundles as such.